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15 September 2021

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             AUSCERT External Security Bulletin Redistribution

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


        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: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Updates Available for Adobe Genuine Service | APSB21-81

Bulletin ID                  Date Published                 Priority

APSB21-81               September 14, 2020                    3


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


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


Adobe categorizes these updates with the following priority ratings .

Product            Version        Platform          Priority Rating

Adobe Genuine Service       7.4       Windows and macOS     3


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

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 )


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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