SB2020110531 - Code execution in Cisco AnyConnect Secure Mobility Client
Published: November 5, 2020
Security Bulletin ID
SB2020110531
CSH Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2020-3556)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a lack of authentication to the interprocess communication (IPC) channel listener. A local user can send specially crafted IPC messages to the AnyConnect client IPC listener and cause the targeted AnyConnect user to execute a script.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.