CVE-2020-3153
mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.283 · 98 %ileexploit · weaponizedEURUUSadded 2022-10-24remediate by 2022-11-14
required action Apply updates per vendor instructions.
EPSS · scored 2026-10-23
Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path 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 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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco AnyConnect Secure Mobility Clientcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (4)
Public proof-of-concept and weaponised exploit code.
affected products (4)
Products and version ranges known to be affected.
- cisco anyconnect secure mobility client< 4.8.02042nvdUScpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-ac-win-path-traverse-qO4HWBsjCisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability2020-02-19csaf · cisco_csafUS
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. Cisco has released software updates that address the vulnerability described in this advisory. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj"]
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (20)
External citations — patches, advisories, analysis.
- http://seclists.org/fulldisclosure/2020/Apr/43cnnvd
- https://cxsecurity.com/issue/WLB-2020090145cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-3153cnnvd
- https://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Client-4.8.01090-Privilege-Escalation.htmlcnnvd
- https://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Privilege-Escalation.htmlcnnvd
- https://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.htmlcnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsjcnnvd
- https://vigilance.fr/vulnerability/Cisco-AnyConnect-Secure-Mobility-Client-for-Windows-executing-DLL-code-31641cnnvd
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