cyfenced.com →

[ CVE-2020-3153 · Published 19 Feb 2020 ]

Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

Exploited · CISA KEV CVSS 6.5 EPSS 28%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-10-24
  • Known to be used in ransomware campaigns
  • EPSS: 28% chance of exploitation in the next 30 days (higher than 98% of CVEs)

[ Description ]Official description

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system directory. An exploit could allow the attacker to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.

CISA: Cisco AnyConnect Secure Mobility Client for Windows allows for incorrect handling of directory paths. An attacker with valid credentials on Windows would be able to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 14 Nov 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References