CVE-2021-1426: cisco anyconnect_secure_mobility_client

Vulnerability summary

CVE-2021-1426 is a high (CVSS 7.8) vulnerability in cisco anyconnect_secure_mobility_client. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.1% of scored vulnerabilities.

Timeline

1. 06-05-2021
   PublishedVulnerability first disclosed.
2. 08-11-2024
   Last modifiedVulnerability information updated.

Description

Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.

• CWE-378Creation of Temporary File With Insecure PermissionsOpening temporary files without appropriate measures or controls can leave the file, its contents and any function that it impacts vulnerable to attack.
• CWE-427Uncontrolled Search Path ElementThe product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.