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7.8 High Exploited · ransomware

CVE-2020-3433 Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking 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 interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker would need to have 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
The 23 CVEs of Cisco AnyConnect Secure Mobility Client →
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