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OrangeH1:2585384

HistoryJul 03, 2024 - 7:01 a.m.

Internet Bug Bounty: moderate: Apache HTTP Server proxy encoding problem (CVE-2024-38473)

2024-07-0307:01:22

orange

hackerone.com

$2600

21

apache http server

mod_proxy

encoding problem

cve-2024-38473

backend services

authentication bypass

upgrade

bug bounty

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

AI Score

7

Confidence

Low

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

Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests.

Users are recommended to upgrade to version 2.4.60, which fixes this issue.

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

AI Score

7

Confidence

Low