QID 87468

Date Published: 2021-10-26

QID 87468: Apache Hypertext Transfer Protocol (HTTP) Server mod_proxy Server-Side Request Forgery (SSRF) Vulnerability

Apache HTTP Server is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0.

Affected Versions:
Apache HTTP Server 2.4.48 and earlier

QID Detection Logic:(Unauthenticated)
This QID checks for vulnerable Apache Version by sending a SSRF payload to the target

Note: A target is vulnerable only if mod_proxy redirects the server due to URL being rewritten by UDS. This QID tries to redirect requests to https://www.qualys.com/

Successful exploitation of this vulnerability may allow an attacker to induce the server-side application to make HTTP requests to an arbitrary domain of the attacker's choosing.

  • CVSS V3 rated as Critical - 9 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution
    Customers are advised to update to Apache HTTP Server 2.4.49 or later. For more information, check Apache Security Advisory

    Vendor References

    CVEs related to QID 87468

    CVE-2021-40438 |
    Software Advisories
    Advisory ID Software Component Link
    NA URL Logo httpd.apache.org/security/vulnerabilities_24.html
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