QID 317141

Date Published: 2022-04-13

QID 317141: Cisco Web Security Appliance Filter Bypass Vulnerability (cisco-sa-swa-filter-bypass-XXXTU3X)

A vulnerability in the Web-Based Reputation Score (WBRS) engine of Cisco AsyncOS Software for
Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass established web request
policies and access blocked content on an affected device.

Affected Products:
Earlier than 11.7 are not vulnerable.
From 11.7 Prior to 14.0.2
14.5 is not vulnerable

QID Detection Logic (Authenticated):
The Qid checks for the Vulnerable version of Cisco WSA in the response of "version" command.

A successful exploit could allow the attacker to bypass the web proxy and access web content that has been blocked by policy.

  • CVSS V3 rated as Medium - 5.3 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution

    Customers are advised to refer to cisco-sa-swa-filter-bypass-XXXTU3X for more information.

    Vendor References

    CVEs related to QID 317141

    CVE-2022-20784 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-swa-filter-bypass-XXXTU3X URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-swa-filter-bypass-XXXTU3X
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