Operating System:

[Win][Mac]

Published:

15 September 2021

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.3081
       APSB21-81 Security update available for Adobe Genuine Service
                             15 September 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Adobe Genuine Service
Publisher:         Adobe
Operating System:  Windows
                   Mac OS
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-40708  

Original Bulletin: 
   https://helpx.adobe.com/security/products/integrity_service/apsb21-81.html

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Security Updates Available for Adobe Genuine Service | APSB21-81

Bulletin ID                  Date Published                 Priority

APSB21-81               September 14, 2020                    3


Summary

Adobe has released updates for Adobe Genuine Service for Windows and macOS.
This update resolves a critical vulnerability that could lead to privilege
escalation in the context of the current user.

Affected Versions

Product                      Version                   Platform

Adobe Genuine Service      7.3 and earlier versions       Windows and macOS

Note:

To verify the version of Adobe Genuine Service installed on your system, please
follow the following steps:

For Windows machines:

  o Navigate to C:\Program Files (x86)\Common Files\Adobe\AdobeGCClient
  o Right click on AdobeGCClient.exe, select "Properties".
  o Go to "Details" tab, the File Version can be seen within.

For mac machines:

  o Navigate to /Library/Application Support/Adobe/AdobeGCClient/
  o Right click on AdobeGCClient, select Get Info.
  o File Version can be seen corresponding version tag

Solution

Adobe categorizes these updates with the following priority ratings .

Product            Version        Platform          Priority Rating

Adobe Genuine Service       7.4       Windows and macOS     3

Note:

Adobe Genuine Integrity Service has a self-update mechanism that runs
automatically at a regular interval when the host is connected to the internet.
For more details regarding Adobe Genuine Integrity Service, please visit here .

Vulnerability details

   Vulnerability     Vulnerability          CVSS
      Category          Impact     Severity base   CVSS vector    CVE Numbers
                                            score

Creation of
Temporary File in                                 CVSS:3.1/AV:L/
Directory with       Privilege                    AC:L/PR:L/UI:R
Incorrect            Escalation    Critical 7.3   /S:U/C:H/I:H/  CVE-2021-40708
Permissions                                       A:H

( CWE-379 )


Acknowledgments

Adobe would like to thank CQY of Topsec Alpha Team (yjdfy) for reporting these
issues and for working with Adobe to help protect our customers.

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