SB2020111909 - Improper access control in Cisco Expressway Software
Published: November 19, 2020
Security Bulletin ID
SB2020111909
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2020-3482)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper validation of specific connection information by the Traversal Using Relays around NAT (TURN) server. A remote attacker can send traffic through the affected software to destinations beyond the application and gain unauthorized network access.
Remediation
Install update from vendor's website.