Main Vulnerability Database Vulnerabilities #VU77088

Permissions, Privileges, and Access Controls in Cisco AnyConnect Secure Mobility Client and Cisco Secure Client - CVE-2023-20178

Published: June 8, 2023 / Updated: June 26, 2023

Vulnerability identifier: #VU77088

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-20178

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper permissions are assigned to a temporary directory that is created during the upgrade process. A local user can execute arbitrary code with SYSTEM privileges.

Affected software

Cisco AnyConnect Secure Mobility Client
Cisco Secure Client

How to mitigate CVE-2023-20178

Install updates from vendor's website.

Cisco AnyConnect Secure Mobility Client - update to 4.10MR7
Cisco Secure Client - update to 5.0MR2

Links to Public Exploits and PoC-codes

Exploit #9130 - CVE-2023-20178 () (June 26, 2023)

External References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-csc-privesc-wx4U4Kw

Related Security Bulletins

Privilege escalation in Cisco AnyConnect Secure Mobility Client Software and Secure Client Software