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6.5 Medium Exploited · ransomware

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

Active exploitation observed

· CISA KEV catalogue
Required action Apply updates per vendor instructions.
Ransomware campaigns Known to be used
Weakness CWE-427

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.

Affected products and versions

Product Affected versions Fixed in
Cisco AnyConnect Secure Mobility Client Versions not published

References

Timeline

  1. Published
  2. Added to the KEV catalogue
  3. Last modified

Other CVEs of Cisco AnyConnect Secure Mobility Client

The 23 CVEs of Cisco AnyConnect Secure Mobility Client →
CVE-2021-40124 A vulnerability in the Network Access Manager (NAM) module of Cisco AnyConnect Secure Mobility Client for Windows… 6.7 Medium CVE-2021-34788 A vulnerability in the shared library loading mechanism of Cisco AnyConnect Secure Mobility Client for Linux and Mac… 7.0 High CVE-2021-1567 A vulnerability in the DLL loading mechanism of Cisco AnyConnect Secure Mobility Client for Windows could allow an… 7.0 High CVE-2021-1568 A vulnerability in Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to… 5.5 Medium
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