Cisco Expressway/TelePresence VCS Privilege Escalation via Password Change Flaw
CVE-2023-20105 Published on June 28, 2023
A vulnerability in the change password functionality of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with Read-only credentials to elevate privileges to Administrator on an affected system. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by authenticating to the application as a Read-only user and sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to alter the passwords of any user on the system, including an administrative user, and then impersonate that user. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device.
Vulnerability Analysis
CVE-2023-20105 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity and availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2023-20105
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2023-20105 are published in Cisco Telepresence Video Communication Server:
Affected Versions
Cisco TelePresence Video Communication Server (VCS) Expressway:- Version X8.5.1 is affected.
- Version X8.5.3 is affected.
- Version X8.5 is affected.
- Version X8.6.1 is affected.
- Version X8.6 is affected.
- Version X8.1.1 is affected.
- Version X8.1.2 is affected.
- Version X8.1 is affected.
- Version X8.2.1 is affected.
- Version X8.2.2 is affected.
- Version X8.2 is affected.
- Version X8.7.1 is affected.
- Version X8.7.2 is affected.
- Version X8.7.3 is affected.
- Version X8.7 is affected.
- Version X8.8.1 is affected.
- Version X8.8.2 is affected.
- Version X8.8.3 is affected.
- Version X8.8 is affected.
- Version X8.9.1 is affected.
- Version X8.9.2 is affected.
- Version X8.9 is affected.
- Version X8.10.0 is affected.
- Version X8.10.1 is affected.
- Version X8.10.2 is affected.
- Version X8.10.3 is affected.
- Version X8.10.4 is affected.
- Version X12.5.8 is affected.
- Version X12.5.9 is affected.
- Version X12.5.0 is affected.
- Version X12.5.2 is affected.
- Version X12.5.7 is affected.
- Version X12.5.3 is affected.
- Version X12.5.4 is affected.
- Version X12.5.5 is affected.
- Version X12.5.1 is affected.
- Version X12.5.6 is affected.
- Version X12.6.0 is affected.
- Version X12.6.1 is affected.
- Version X12.6.2 is affected.
- Version X12.6.3 is affected.
- Version X12.6.4 is affected.
- Version X12.7.0 is affected.
- Version X12.7.1 is affected.
- Version X8.11.1 is affected.
- Version X8.11.2 is affected.
- Version X8.11.4 is affected.
- Version X8.11.3 is affected.
- Version X8.11.0 is affected.
- Version X14.0.1 is affected.
- Version X14.0.3 is affected.
- Version X14.0.2 is affected.
- Version X14.0.4 is affected.
- Version X14.0.5 is affected.
- Version X14.0.6 is affected.
- Version X14.0.7 is affected.
- Version X14.0.8 is affected.
- Version X14.0.9 is affected.
- Version X14.0.10 is affected.
- Version X14.0.11 is affected.
- Version X14.2.1 is affected.
- Version X14.2.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.