Security Advisory: AppDynamics Controller Authorization Bypass Vulnerability
| Advisory ID: | appd-sa-contrl-athzn-bp | CVE-2022-20736 CWE-939 | |
| First Published: |
2022 June 15 16:00 GMT | ||
| Version 1.0: | Final | ||
| Workarounds: |
No workarounds available | ||
| Cisco Bug IDs: | CSCwa72853 | ||
| CVSS Score: | Base 5.3 |
Summary
A vulnerability in the web-based management interface of Cisco AppDynamics Controller Software could allow unauthenticated remote attackers to access a configuration file and the login page for an administrative console that they would not normally have authorization to access.
This vulnerability is due to improper authorization checking for HTTP requests that are submitted to the affected web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected instance of AppDynamics Controller. A successful exploit could allow the attacker to access the login page for an administrative console.
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://docs.appdynamics.com/display/PAA/Security+Advisory%3A+AppDynamics+Controller+Authorization+Bypass+Vulnerability
Affected Products
Vulnerable Products
This vulnerability affects the cloud-based AppDynamics Controller (SaaS).
At the time of publication, this vulnerability also affected the on-prem AppDynamics Controller.
For information about which Cisco software releases were vulnerable at the time of publication, see Fixed Software. 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 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 the 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
AppDynamics has addressed this vulnerability in the cloud-based SaaS environment. For customers on a SaaS version of AppDynamics Controller, no user action is required.
AppDynamics On-Premises Controller
At the time of publication, the release information in the following table(s) 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.
| AppDynamics Controller Release | First Fixed Release |
|---|---|
| 21.4.6 and earlier | 21.4.7 |
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.
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.
Exploitation and Public Announcements
AppDynamics is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Source
AppDynamics would like to thank Matteo Guastella and Enrico Milanese with Yoroi S.r.l. for reporting this vulnerability.
URL
Revision History
| Version | Description | Section | Status | Date |
|---|---|---|---|---|
| 1.0 | Initial public release. | — | Final |
2022-JUN-15 16:00 GMT |
ANY SOFTWARE OR RELEASES, INCLUDING BUT NOT LIMITED TO PATCHES, UPGRADES, AND HOTFIXES, MENTIONED IN THIS SECURITY ADVISORY IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. APPDYNAMICS DISCLAIMS ALL REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT THERETO, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL APPDYNAMICS, ITS AFFILIATES, OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS, OR SPECIAL DAMAGES, EVEN IF THE OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY TO YOU.
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