Cisco BroadWorks impacted by critical authentication bypass flaw - 20230908002¶
Overview¶
The WA SOC has observed a critical vulnerability in the single sign-on (SSO) implementation of Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform, a cloud communication services platform allowing an unauthenticated remote attacker to forge the credentials required to bypass an affected system.
What is the vulnerability?¶
CVE-2023-20238 - CVSS v3 Base Score: 10.0
What is vulnerable?¶
The vulnerability affects the Cisco Application Delivery Platform and BroadWorks Xtended Services Platform release having one of the following applications enabled;
- AuthenticationService
- BWCallCenter
- BWReceptionist
- CustomMediaFilesRetrieval
- ModeratorClientApp
- PublicECLQuery
- PublicReporting
- UCAPI
- Xsi-Actions
- Xsi-Events
- Xsi-MMTel
- Xsi-VTR
What has been observed?¶
There is no evidence of exploitation affecting Western Australian Government networks at the time of publishing.
Recommendation¶
The WA SOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframe of one month (refer Patch Management):