SB2024092807 - Gentoo update for Apache HTTPD
Published: September 28, 2024 Updated: May 1, 2025
Breakdown by Severity
- Low
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- Critical
Description
This security bulletin contains information about 14 secuirty vulnerabilities.
1) HTTP response splitting (CVE-ID: CVE-2023-38709)
The vulnerability allows a remote attacker to perform HTTP splitting attacks.
The vulnerability exists due to software does not correctly process CRLF character sequences. A malicious or exploitable backend/content generators can send specially crafted response containing CRLF sequence and make the application to send a split HTTP response.
Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.
2) HTTP response splitting (CVE-ID: CVE-2024-24795)
The vulnerability allows a remote attacker to perform HTTP splitting attacks.
The vulnerability exists due to software does not correctly process CRLF character sequences in multiple modules. A remote attacker can inject malicious response headers into backend applications and perform an HTTP desynchronization attack.
Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.
3) Resource exhaustion (CVE-ID: CVE-2024-27316)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling HTTP/2 requests. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.
4) NULL pointer dereference (CVE-ID: CVE-2024-36387)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when handling websocket over HTTP/2 connections. A remote attacker can send specially crafted data to the web server and perform a denial of service (DoS) attack.
5) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2024-38472)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request and trick the web server to leak NTLM hashes.
Note, the vulnerability affects Windows installations only.
6) Input validation error (CVE-ID: CVE-2024-38473)
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to insufficient validation of user-supplied input when handling incorrect encoding in mod_proxy. A remote attacker can force the web server to pass request URLs with incorrect encoding to backend services.
7) Input validation error (CVE-ID: CVE-2024-38474)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in mod_rewrite when parsing encoded question marks in backreferences. A remote attacker can execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI.
8) Input validation error (CVE-ID: CVE-2024-38475)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in mod_rewrite when first segment of substitution matches filesystem path. A remote attacker can map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL and view contents of files or execute arbitrary code.
9) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2024-38476)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker with control over the backend server can run local handlers via internal redirect and gain access to sensitive information or compromise the affected system.
10) Input validation error (CVE-ID: CVE-2024-38477)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in mod_proxy. A remote attacker can send specially crafted requests to the web server and perform a denial of service (DoS) attack.
11) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2024-39573)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in mod_rewrite proxy handler substitution. A remote attacker can cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.
12) Information disclosure (CVE-ID: CVE-2024-39884)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to an error when processing legacy content-type based configuration of handlers, such as "AddType" and similar configuration when files are requested indirectly. A remote attacker can send a specially crafted HTTP request and view contents of files, for example the source code of a PHP script can be served instead of interpreted.
13) Information disclosure (CVE-ID: CVE-2024-40725)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to an error when processing legacy content-type based configuration of handlers, such as "AddType" and similar configuration when files are requested indirectly. A remote attacker can send a specially crafted HTTP request and view contents of files, for example the source code of a PHP script can be served instead of interpreted.
Note, the vulnerability exists due to incomplete fix for #VU93729 (CVE-2024-39884).
14) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2024-40898)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in Apache HTTP Server on Windows with mod_rewrite in server/vhost context. A remote attacker can force the web server to leak NTML hashes to a malicious server via SSRF and malicious requests.
Remediation
Install update from vendor's website.