CVE-2020-3434: cisco anyconnect_secure_mobility_client Improper Input Validation

Vulnerability summary

CVE-2020-3434 is a medium (CVSS 5.5) Improper Input Validation vulnerability in cisco anyconnect_secure_mobility_client. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.

Timeline

1. 17-08-2020
   PublishedVulnerability first disclosed.
2. 13-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process on an affected device. A successful exploit could allow the attacker to stop the AnyConnect process, causing a DoS condition on the device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.