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Internet Bug Bounty · Report #2585385

important: Apache HTTP Server on WIndows UNC SSRF (CVE-2024-38472)

Validstatus
highseverity
$4,920bounty
45upvotes
13 Jul 2024disclosed

Summary

important: Apache HTTP Server on WIndows UNC SSRF (CVE-2024-38472)

SSRF in Apache HTTP Server on Windows allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests or content

Users are recommended to upgrade to version 2.4.60 which fixes this issue. Note: Existing configurations that access UNC paths will have to configure new directive "UNCList" to allow access during request processing.

Acknowledgements: finder: Orange Tsai (@orange_8361) from DEVCORE

Reported to security team: 2024-04-01 fixed by r1918558 in 2.4.x: 2024-07-01 Update 2.4.60 released: 2024-07-01 Affects: 2.4.0 through 2.4.59

How it was found

I reported this vulnerability through the official Apache HTTP Server security email on April 1, 2024, and received a fix along with a CVE number on July 1, 2024. You can check detailed information from there:

https://httpd.apache.org/security/vulnerabilities_24.html

Impact

SSRF in Apache HTTP Server on Windows allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests or content

Users are recommended to upgrade to version 2.4.60 which fixes this issue. Note: Existing configurations that access UNC paths will have to configure new directive "UNCList" to allow access during request processing.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original