Input validation error in Cisco AnyConnect Secure Mobility Client - CVE-2020-3434

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Main Vulnerability Database Vulnerabilities #VU34082

Input validation error in Cisco AnyConnect Secure Mobility Client - CVE-2020-3434

Published: August 6, 2020 / Updated: September 28, 2020


Vulnerability identifier: #VU34082
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2020-3434
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vendor: Cisco Systems, Inc
Affected software:
Cisco AnyConnect Secure Mobility Client

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the interprocess communication (IPC) channel. A local user can send a specially crafted IPC message to the AnyConnect process and perform a denial of service (DoS) attack.


How to mitigate CVE-2020-3434

Install updates from vendor's website.

Sources