#VU100673 CRLF injection in PHP - CVE-2024-11234

Vulnerability identifier: #VU100673

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-11234

CWE-ID: CWE-93

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of URIs in streams component when using proxy. A remote attacker can pass specially crafted data to the application containing CR-LF characters and perform a spoofing attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13

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External links
https://github.com/php/php-src/security/advisories/GHSA-c5f2-jwm7-mmq2

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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.