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Latest Vulnerability Information

Critical Patches Issued for Microsoft Products, October 12, 2021

Critical Patches Issued for Microsoft Products, October 12, 2021



Critical Patches Issued for Microsoft Products, October 12, 2021

MS-ISAC ADVISORY NUMBER:


2021-130

DATE(S) ISSUED:


10/12/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

THREAT INTELLIGENCE:



Per Talos Intelligence, CVE-2021-40449 has been exploited in the wild to achieve privilege escalation. There are no additional details about proof of concept or threat actors known to leverage this vulnerability.

SYSTEMS AFFECTED:


  • .NET Core & Visual Studio

  • Active Directory Federation Services

  • Console Window Host

  • HTTP.sys

  • Microsoft DWM Core Library

  • Microsoft Dynamics

  • Microsoft Dynamics 365 Sales

  • Microsoft Edge (Chromium-based)

  • Microsoft Exchange Server

  • Microsoft Graphics Component

  • Microsoft Intune

  • Microsoft Office Excel

  • Microsoft Office SharePoint

  • Microsoft Office Visio

  • Microsoft Office Word

  • Microsoft Windows Codecs Library

  • Rich Text Edit Control

  • Role: DNS Server

  • Role: Windows Active Directory Server

  • Role: Windows AD FS Server

  • Role: Windows Hyper-V

  • System Center

  • Visual Studio

  • Windows AppContainer

  • Windows AppX Deployment Service

  • Windows Bind Filter Driver

  • Windows Cloud Files Mini Filter Driver

  • Windows Common Log File System Driver

  • Windows Desktop Bridge

  • Windows DirectX

  • Windows exFAT File System

  • Windows Fastfat Driver

  • Windows Installer

  • Windows Kernel

  • Windows MSHTML Platform

  • Windows Nearby Sharing

  • Windows Network Address Translation (NAT)

  • Windows Print Spooler Components

  • Windows Remote Procedure Call Runtime

  • Windows Storage Spaces Controller

  • Windows TCP/IP

  • Windows Text Shaping

  • Windows Win32K

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: MEDIUM

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: MEDIUM

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for arbitrary code execution.

A full list of all vulnerabilities can be found at the link below:
https://msrc.microsoft.com/update-guide

Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply appropriate patches or appropriate mitigations provided by Microsoft to vulnerable systems immediately after appropriate testing.

  • Apply the Principle of Least Privilege to all systems and services, and run all software as a non-privileged user (one without administrative rights) to diminish the effects of a successful attack.

  • Remind all users not to visit untrusted websites or follow links/open files provided by unknown or untrusted sources.

REFERENCES:



A Vulnerability in Apple iOS and iPadOS Could Allow...

A Vulnerability in Apple iOS and iPadOS Could Allow for Arbitrary Code Execution.



A Vulnerability in Apple iOS and iPadOS Could Allow for Arbitrary Code Execution.

MS-ISAC ADVISORY NUMBER:


2021-131

DATE(S) ISSUED:


10/12/2021

OVERVIEW:


A vulnerability has been discovered in iOS and iPadOS, which could allow for arbitrary code execution with kernel privileges. iOS and iPadOS are operating systems for Apple’s mobile devices including the iPhone, iPad, and iPod touch. Successful exploitation of this vulnerability would allow an attacker to install programs and view, change, or delete any data due to kernel privileges.

THREAT INTELLIGENCE:



Apple has reported that CVE-2021-30883 is being exploited in the wild.

SYSTEMS AFFECTED:


  • iOS prior to 15.0.2

  • iPadOS prior to 15.0.2

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: MEDIUM

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: MEDIUM

Home Users:
MEDIUM


TECHNICAL SUMMARY:



An integer overflow vulnerability has been discovered in iOS and iPadOS, which could allow for arbitrary code execution with kernel privileges. This has been addressed in the latest patch via improved memory handling.

Successful exploitation of this vulnerability would allow an attacker to install programs and view, change, or delete any data due to kernel privileges.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply appropriate patches provided by Apple to vulnerable systems immediately after appropriate testing.

  • Remind users not to download, accept or execute files from untrusted and unknown sources.

  • Remind users not to visit untrusted websites or follow links provided by untrusted or unknown sources.

REFERENCES:




Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary...

Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution



Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:


2021-129

DATE(S) ISSUED:


10/08/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Google Chrome is a web browser used to access the Internet. Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

THREAT INTELLIGENCE:



There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:


  • Google Chrome versions prior to 94.0.4606.81

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: MEDIUM

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: MEDIUM

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Details of the vulnerabilities are as follows:

  • A Use after free in Garbage Collection. (CVE-2021-37977)
  • A Heap buffer overflow in Blink. (CVE-2021-37978)
  • A Heap buffer overflow in WebRTC. (CVE-2021-37979)
  • An inappropriate implementation in Sandbox. (CVE-2021-37980)

Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply the stable channel update provided by Google to vulnerable systems immediately after appropriate testing.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES:



Multiple Vulnerabilities in Mozilla Firefox and Could Allow for...

Multiple Vulnerabilities in Mozilla Firefox and Could Allow for Arbitrary Code Execution



Multiple Vulnerabilities in Mozilla Firefox and Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:


2021-128

DATE(S) ISSUED:


10/06/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in Mozilla Firefox and Firefox Extended Support Release (ESR), the most severe of which could allow for arbitrary code execution. Mozilla Firefox is a web browser used to access the Internet. Mozilla Firefox ESR is a version of the web browser intended to be deployed in large organizations. Successful exploitation of these vulnerabilities could allow for arbitrary code execution. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

THREAT INTELLIGENCE:



There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:


  • Mozilla Firefox versions prior to 93

  • Firefox ESR versions prior to 78.15

  • Firefox ESR versions prior to 91.2

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: HIGH

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: HIGH

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in Mozilla Firefox and Firefox Extended Support Release (ESR), the most severe of which could allow for arbitrary code execution. Details of these vulnerabilities are as follows:

  • Use-after-free in MessageTask (CVE-2021-38496)
  • Validation message could have been overlaid on another origin (CVE-2021-38497)
  • Use-after-free of nsLanguageAtomService object (CVE-2021-38498)
  • Data race in crossbeam-deque (CVE-2021-32810)
  • Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 (CVE-2021-38499, CVE-2021-38500, CVE-2021-38501)

Successful exploitation of these vulnerabilities could allow for arbitrary code execution. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply appropriate updates provided by Mozilla to vulnerable systems immediately after appropriate testing.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES:



A Vulnerability in Apache HTTP Server Could Allow for...

A Vulnerability in Apache HTTP Server Could Allow for a Path Traversal Attack



A Vulnerability in Apache HTTP Server Could Allow for a Path Traversal Attack

MS-ISAC ADVISORY NUMBER:


2021-127

DATE(S) ISSUED:


10/05/2021

OVERVIEW:


A vulnerability has been discovered in Apache HTTP Server, which could allow for a path traversal attack. Apache HTTP Server is an open-source, cross-platform web server for Unix and Windows. Successful exploitation allows threat actors to map URLs to files outside the expected document root by launching a path traversal attack and would give a remote attacker access to arbitrary files outside of the document root on the vulnerable web server. Additionally, exploits of this flaw may lead to the leaking of the source of interpreted files such as CGI scripts.

THREAT INTELLIGENCE:



Apache has reported this vulnerability is actively being exploited in the wild.

SYSTEMS AFFECTED:


  • Apache HTTP Server 2.4.49

  • Apache HTTP Server 2.4.50

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: MEDIUM

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: MEDIUM

Home Users:
LOW


TECHNICAL SUMMARY:



A vulnerability has been discovered in Apache HTTP Server, which could allow for a path traversal attack. The vulnerability was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the expected document root. If files outside of the document root are not protected by the "require all denied" access control parameter, disabled be default, these requests can succeed. Additionally this flaw could leak the source of interpreted files like CGI scripts. Path traversal attacks involve sending requests to access backend or sensitive server directories that should be out of reach. With this vulnerability, the filters are bypassed by using encoded characters (ASCII) for the URLs. Successful exploitation allows threat actors to map URLs to files outside the expected document root by launching a path traversal attack and would give a remote attacker access to arbitrary files outside of the document root on the vulnerable web server. Additionally, exploits of this flaw may lead to the leaking of the source of interpreted files such as CGI scripts.

October 8 – UPDATED TECHNICAL SUMMARY:
A vulnerability has been discovered in Apache HTTP Server, which could allow for a path traversal attack. The vulnerability was found in a change made to path normalization in Apache HTTP Server versions 2.4.49 and 2.4.50. An attacker could use a path traversal attack to map URLs to files outside the expected document root. If files outside of the document root are not protected by the "require all denied" access control parameter, disabled be default, these requests can succeed. Additionally this flaw could leak the source of interpreted files like CGI scripts. Path traversal attacks involve sending requests to access backend or sensitive server directories that should be out of reach. With this vulnerability, the filters are bypassed by using encoded characters (ASCII) for the URLs. Successful exploitation allows threat actors to map URLs to files outside the expected document root by launching a path traversal attack and would give a remote attacker access to arbitrary files outside of the document root on the vulnerable web server. Additionally, exploits of this flaw may lead to the leaking of the source of interpreted files such as CGI scripts.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply the latest Apache HTTP Server patch (2.4.50) for your platform

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.


**October 8 – UPDATED RECOMMENDATIONS:

We recommend the following actions be taken:



  • Apply the latest Apache HTTP Server patch (2.4.51) for your platform

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.**

REFERENCES:




Multiple Vulnerabilities in Google Android OS Could Allow for...

Multiple Vulnerabilities in Google Android OS Could Allow for Remote Code Execution



Multiple Vulnerabilities in Google Android OS Could Allow for Remote Code Execution

MS-ISAC ADVISORY NUMBER:


2021-126

DATE(S) ISSUED:


10/04/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in the Google Android operating system (OS), the most severe of which could allow for remote code execution. Android is an operating system developed by Google for mobile devices, including, but not limited to, smartphones, tablets, and watches. Successful exploitation of the most severe of these vulnerabilities could allow for remote code execution within the context of a privileged process. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

THREAT INTELLIGENCE:



There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:


  • Android OS builds utilizing Security Patch Levels issued prior to October 5, 2021

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: HIGH

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: HIGH

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in Google Android OS, the most severe of which could allow for remote code execution within the context of a privileged process. Details of these vulnerabilities are as follows:

  • A vulnerability in Android runtime that could enable a local attacker with physical access to the device to execute arbitrary code in order to gain access to additional permissions. (CVE-2021-0703)
  • Multiple vulnerabilities in Framework that could enable a local malicious application to execute arbitrary code within the context of a privileged process. (CVE-2020-15358, CVE-2021-0651, CVE-2021-0652, CVE-2021-0702, CVE-2021-0705, CVE-2021-0708)
  • A vulnerability in Media Framework that could enable a local malicious application to execute arbitrary code within the context of a privileged process. (CVE-2021-0483)
  • Multiple vulnerabilities in System could enable a remote attacker using a specially crafted transmission to execute arbitrary code within the context of a privileged process. (CVE-2021-0870, CVE-2021-0643, CVE-2021-0706)
  • Multiple vulnerabilities in Kernel that could enable a local attacker to execute arbitrary code within the context of a privileged process. (CVE-2020-10768, CVE-2020-29368, CVE-2020-29660, CVE-2021-0707, CVE-2021-29647)
  • A vulnerability in Telecommunication that could lead to remote information disclosure with no additional execution privileges needed. (CVE-2021-27666)
  • Multiple Critical severity vulnerabilities in Qualcomm components. (CVE-2020-11264, CVE-2020-11301)
  • Multiple high severity vulnerabilities in Qualcomm components. (CVE-2020-2458, CVE-2020-24588, CVE-2020-26139, CVE-2020-26141, CVE-2020-26145, CVE-2020-26146, CVE-2021-1977, CVE-2021-1980, CVE-2021-30305, CVE-2021-30306, CVE-2021-30312)
  • Multiple high severity vulnerabilities in Qualcomm closed-source components. (CVE-2020-11303, CVE-2020-26140, CVE-2020-26147, CVE-2021-1913, CVE-2021-1917, CVE-2021-1932, CVE-2021-1936, CVE-2021-1949, CVE-2021-1959, CVE-2021-1983, CVE-2021-1984, CVE-2021-1985, CVE-2021-30256, CVE-2021-30257, CVE-2021-30258, CVE-2021-30288, CVE-2021-30291, CVE-2021-30292, CVE-2021-30297, CVE-2021-30302, CVE-2021-30310)

Successful exploitation of the most severe of these vulnerabilities could allow for remote code execution within the context of a privileged process. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply appropriate updates by Google Android or mobile carriers to vulnerable systems, immediately after appropriate testing.

  • Remind users to only download applications from trusted vendors in the Play Store.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments, especially from un-trusted sources.

REFERENCES:



CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10768
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11264
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11301
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11303
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15358
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24587
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24588
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26139
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26140
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26141
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26145
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26146
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26147
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29368
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0483
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0643
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0651
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0652
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0702
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0703
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0705
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0706
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0707
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0708
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0870
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1913
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1917
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1932
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1936
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1949
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1959
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1977
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1980
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1983
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1984
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1985
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27666
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29647
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30256
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30257
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30258
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30288
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30291
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30292
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30297
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30302
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30305
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30306
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30310
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30312


Multiple Vulnerabilities in SiemensSolid Edge Could Allow for Arbitrary...

Multiple Vulnerabilities in SiemensSolid Edge Could Allow for Arbitrary Code Execution



Multiple Vulnerabilities in SiemensSolid Edge Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:


2021-125

DATE(S) ISSUED:


10/01/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in SiemensSolid Edge, the most severe of which could allow an attacker to cause an arbitrary code execution. Siemens Edge is a portfolio of software tools that addresses various product development processes: 3D design, simulation, manufacturing and design management. Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution. Depending on the privileges associated with the user, an attacker could then view or modify data, as well as take full control of the system.

THREAT INTELLIGENCE:



There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:


  • Solid Edge SE2021: All versions prior to SE2021MP8

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: MEDIUM

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: MEDIUM

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in SiemensSolid Edge, the most severe of which could allow for arbitrary code execution in the context of the system.

Details of the vulnerabilities are as follows:

  • Application contains a use-after-free vulnerability that could cause arbitrary code execution. (CVE-2021-37202)
  • Application contains an out-of-bounds read while parsing user supplied IFC files which could result in a denial-of-service condition or reading of sensitive information from memory. (CVE-2021-37203)
  • Application is vulnerable to an out of bounds read past the end of an allocated buffer when parsing JT files which leads to information leak. (CVE-2021-41533, CVE-2021-41534)
  • Application contains a use-after-free vulnerability while parsing OBJ files which leads to arbitrary code execution. (CVE-2021-41535, CVE-2021-41536, CVE-2021-41537)
  • Application is vulnerable to information disclosure by unexpected access to an uninitialized pointer while parsing user-supplied OBJ files which leads to information leak. (CVE-2021-41538)
  • Application contains a use-after-free vulnerability while parsing OBJ files which leads to arbitrary code execution. (CVE-2021-41539, CVE-2021-41540)

Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the system. Depending on the privileges associated with the user, an attacker could then view or modify data, as well as take full control of the system.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Install the updates provided by Siemens immediately after appropriate testing.

  • Verify that all hosts with a public IP do not have open ports unless absolutely necessary.

  • Apply the Principle of Least Privilege to all systems and services.

  • Avoid opening files from unknown sources in Solid Edge.

REFERENCES:



Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary...

Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution



Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:


2021-124

DATE(S) ISSUED:


09/30/2021

OVERVIEW:


Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Google Chrome is a web browser used to access the Internet. Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

THREAT INTELLIGENCE:



Google reports the exploits for CVE-2021-37975 and CVE-2021-37976 exist in the wild.

SYSTEMS AFFECTED:


  • Google Chrome versions prior to 94.0.4606.71

RISK:



Government:


  • Large and medium government entities: HIGH

  • Small government entities: HIGH

Businesses:


  • Large and medium business entities: HIGH

  • Small business entities: HIGH

Home Users:
LOW


TECHNICAL SUMMARY:



Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Details of the vulnerabilities are as follows:

  • A use after free vulnerability in Safe Browsing. (CVE-2021-37974)
  • A use after free vulnerability in V8. (CVE-2021-37975)
  • An information leak vulnerability in core. (CVE-2021-37976)

Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

RECOMMENDATIONS:



We recommend the following actions be taken:



  • Apply the stable channel update provided by Google to vulnerable systems immediately after appropriate testing.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES: