IBM HTTP Server 8.5.0.0 < 8.5.5.24 / 9.0.0.0 < 9.0.5.16 Request Splitting Attacks (6963650)

critical Nessus Plugin ID 191005

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Synopsis

The remote web server is affected by a information disclosure vulnerability.

Description

The version of IBM HTTP Server running on the remote host is affected by an request splitting attack vulnerability due to an error when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch. A remote attacker could exploit this vulnerability to bypass access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to IBM HTTP Server version 8.5.5.24, 9.0.5.16, or later. Alternatively, upgrade to the minimal fix pack levels required by the interim fix and then apply Interim Fix PH53014.

Plugin Details

Severity: Critical

ID: 191005

File Name: ibm_http_server_6963650.nasl

Version: 1.1

Type: local

Agent: unix

Family: Web Servers

Published: 2/26/2024

Updated: 2/27/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2023-25690

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:ibm:http_server

Required KB Items: installed_sw/IBM HTTP Server (IHS)

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/4/2023

Vulnerability Publication Date: 4/4/2023

Reference Information

CVE: CVE-2023-25690

Detections

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