CVE-2020-3153: Used in ransomware campaigns — CISA KEV

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 o

01What CISA says about this vulnerability

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…

02Required action — verbatim from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

03Notes & references

• packetstormsecurity.com — http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Cli…
• packetstormsecurity.com — http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Priv…
• packetstormsecurity.com — http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalatio…
• seclists.org — http://seclists.org/fulldisclosure/2020/Apr/43
• tools.cisco.com — https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-a…
• packetstormsecurity.com — http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Cli…
• packetstormsecurity.com — http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Priv…
• packetstormsecurity.com — http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalatio…
• seclists.org — http://seclists.org/fulldisclosure/2020/Apr/43
• tools.cisco.com — https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-a…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

No structured affected-product list available — see references below for vendor advisories.

06Detection

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