#VU112733 Server-Side Request Forgery (SSRF) in Apache HTTP Server - CVE-2024-43204

Vulnerability identifier: #VU112733

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-43204

CWE-ID: CWE-918

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input in mod_proxy . A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Note, the vulnerability exploitation requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header with a value provided in the HTTP request.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache HTTP Server: 2.4 - 2.4.63

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External links
https://downloads.apache.org/httpd/CHANGES_2.4
https://lists.apache.org/thread/tfrrff6k2p5tqg1ht6lxcgjy8564y952

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.