Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

HIGH

7.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

4.46 %

Predictive Probability

Percentile Rank

88.8 th

Documented as more likely to be exploited than 88.8% of known CVEs.

Detection Date

Oct 24, 2022

Remediation Due

Nov 14, 2022

CISA Catalog Active

Threat Analysis

Cisco AnyConnect Secure Mobility Client for Windows interprocess communication (IPC) channel allows for insufficient validation of resources that are loaded by the application at run time. An attacker with valid credentials on Windows could execute code on the affected machine with SYSTEM privileges.

Remediation Directive

Apply updates per vendor instructions.

Asset Context

Vendor Identity

Cisco

Affected Product

AnyConnect Secure

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-427

External Intelligence

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2020-3433