CVE-2020-3153: Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

CVE-2020-3153 · Severity: critical · CVSS 6.5 · Exploited in the wild · Published 2022-10-24

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows allows an authenticated local attacker to copy user-supplied files to system-level directories. This is caused by incorrect handling of directory paths, which can be leveraged for DLL hijacking or pre-loading to achieve privilege escalation.

Vendors: Cisco.

Quick answers

Is CVE-2020-3153 exploited in the wild?
Yes. CVE-2020-3153 is known to be exploited in the wild, first recorded on 24 October 2022. Treat it as urgent.
How severe is CVE-2020-3153?
Critical severity, with a CVSS score of 6.5, published 24 October 2022.
Which products and versions are affected?
Cisco AnyConnect Secure Mobility Client for Windows Prior to 4.8.02042.
Is there a fix for CVE-2020-3153?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-3153 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2020-3153?
Check whether you run Cisco AnyConnect Secure. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco AnyConnect Secure Mobility Client for Windows Prior to 4.8.02042

Timeline

  • 2020-02-19: disclosed: Initial vendor advisory publication
  • 2022-10-24: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-10-24: exploited: Confirmed exploited in the wild per CISA KEV catalog entry date.

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