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CVE-2022-20805

4.1 · MEDIUM
Published Apr 21, 2022 cisco CWE-693 EPSS 0.18% (8th pctl)

Overview

CVE-2022-20805 is a medium-severity vulnerability affecting cisco umbrella_secure_web_gateway. It was published on April 21, 2022 and has a CVSS 3.1 base score of 4.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

A vulnerability in the automatic decryption process in Cisco Umbrella Secure Web Gateway (SWG) could allow an authenticated, adjacent attacker to bypass the SSL decryption and content filtering policies on an affected system. This vulnerability is due to how the decryption function uses the TLS Sever Name Indication (SNI) extension of an HTTP request to discover the destination domain and determine if the request needs to be decrypted. An attacker could exploit this vulnerability by sending a crafted request over TLS from a client to an unknown or controlled URL. A successful exploit could allow an attacker to bypass the decryption process of Cisco Umbrella SWG and allow malicious content to be downloaded to a host on a protected network. There are workarounds that address this vulnerability.

Remediation

Check the references section for vendor advisories and patches from cisco. Update umbrella_secure_web_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-2022-20805?

CVE-2022-20805 is a medium-severity vulnerability affecting cisco umbrella_secure_web_gateway. It was published on April 21, 2022 and has a CVSS 3.1 base score of 4.1 (MEDIUM).

How severe is CVE-2022-20805?

This vulnerability has a CVSS 3.1 base score of 4.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-20805?

Check the references section for vendor advisories and patches from cisco. Update umbrella_secure_web_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-20805?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-20805 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.