Summary

• A vulnerability in the installer script of Cisco AppDynamics PHP Agent could allow an authenticated, local attacker to elevate privileges on an affected device.

  This vulnerability is due to insufficient permissions that are set by the PHP Agent Installer on the PHP Agent install directory. An attacker could exploit this vulnerability by modifying objects in the PHP Agent install directory, which would run with the same privileges as PHP. A successful exploit could allow a lower-privileged attacker to elevate their privileges to root on an affected device.

  Cisco AppDynamics has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appd-php-authpriv-gEBwTvu5

Affected Products

• Vulnerable Products

  At the time of publication, this vulnerability affected Cisco AppDynamics PHP Agent.

  For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.

Workarounds

• There are no workarounds that address this vulnerability.

Fixed Software

• AppDynamics, a Cisco company, has released a software update that addresses the vulnerability that is described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have a current license and have a valid support and maintenance agreement. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of their license agreement with AppDynamics. Security software updates do not entitle customers to a new software license or additional software feature sets.

  Customers who have a current license and have a valid support and maintenance agreement can download the fixed version of software from their existing AppDynamics delivery server download account.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to open a support ticket in the AppDynamics Support system.

  Fixed Releases

  At the time of publication, the release information in the following table was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

  The left column lists AppDynamics software releases, and the right column indicates whether a release was affected by the vulnerability described in this advisory and which release included the fix for this vulnerability.

  Cisco AppDynamics PHP Agent Release	First Fixed Release
  23.4.0 and earlier	23.7.0

  Customers can obtain fixed releases from the AppDynamics software portal: https://download.appdynamics.com. To download the fixed software, customers must have an AppDynamics account.

Exploitation and Public Announcements

• The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source

• This vulnerability was found during internal security testing.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appd-php-authpriv-gEBwTvu5

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	-	Final	2023-NOV-15

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