CVEvulnerability
CVE-2020-3153
CISA Known Exploited Vulnerability
Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability — Cisco AnyConnect Secure
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.
- Added to KEV
- 2022-10-24
- Remediation due
- 2022-11-14
- Ransomware use
- Known
- Required action
- Apply updates per vendor instructions.
- Notes
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj; https://nvd.nist.gov/vuln/detail/CVE-2020-3153
- Status
- Analyzed
- Published
- 2020-02-19
- Last modified
- 2026-08-12
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
- CVSS 3.0 ([email protected])
- 6.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:C/A:N
- Weaknesses
- 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 configurations
• cisco anyconnect secure mobility client (< 4.8.02042)
Related
Weakness · CWE (1)
- CWE-427 Uncontrolled Search Path Element weakness
References
- http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Client-4.8.01090-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Apr/43 Exploit, Mailing List, Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj Vendor Advisory
- http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Client-4.8.01090-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Apr/43 Exploit, Mailing List, Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3153 US Government Resource