RHEL 7 : httpd24-httpd (RHSA-2022:6753)

critical Nessus Plugin ID 165553

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Synopsis

The remote Red Hat host is missing one or more security updates for httpd24-httpd.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:6753 advisory.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

* httpd: mod_sed: Read/write beyond bounds (CVE-2022-23943)

* httpd: Request splitting via HTTP/2 method injection and mod_proxy (CVE-2021-33193)

* httpd: NULL pointer dereference via malformed requests (CVE-2021-34798)

* httpd: mod_proxy_uwsgi: out-of-bounds read via a crafted request uri-path (CVE-2021-36160)

* httpd: Out-of-bounds write in ap_escape_quotes() via malicious input (CVE-2021-39275)

* httpd: possible NULL dereference or SSRF in forward proxy configurations (CVE-2021-44224)

* httpd: mod_lua: Use of uninitialized value of in r:parsebody (CVE-2022-22719)

* httpd: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody (CVE-2022-22721)

* httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-26377)

* httpd: mod_lua: DoS in r:parsebody (CVE-2022-29404)

* httpd: mod_sed: DoS vulnerability (CVE-2022-30522)

* httpd: mod_proxy: X-Forwarded-For dropped by hop-by-hop mechanism (CVE-2022-31813)

* httpd: out-of-bounds read via ap_rwrite() (CVE-2022-28614)

* httpd: out-of-bounds read in ap_strcmp_match() (CVE-2022-28615)

* httpd: mod_lua: Information disclosure with websockets (CVE-2022-30556)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* proxy rewrite to unix socket fails with CVE-2021-40438 fix (BZ#2022319)

Additional changes:

* To fix CVE-2022-29404, the default value for the LimitRequestBody directive in the Apache HTTP Server has been changed from 0 (unlimited) to 1 GiB.

On systems where the value of LimitRequestBody is not explicitly specified in an httpd configuration file, updating the httpd package sets LimitRequestBody to the default value of 1 GiB. As a consequence, if the total size of the HTTP request body exceeds this 1 GiB default limit, httpd returns the 413 Request Entity Too Large error code.

If the new default allowed size of an HTTP request message body is insufficient for your use case, update your httpd configuration files within the respective context (server, per-directory, per-file, or per- location) and set your preferred limit in bytes. For example, to set a new 2 GiB limit, use:

LimitRequestBody 2147483648

Systems already configured to use any explicit value for the LimitRequestBody directive are unaffected by this change.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the RHEL httpd24-httpd package based on the guidance in RHSA-2022:6753.

Plugin Details

Severity: Critical

ID: 165553

File Name: redhat-RHSA-2022-6753.nasl

Version: 1.8

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/29/2022

Updated: 11/7/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2022-31813

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: p-cpe:/a:redhat:enterprise_linux:httpd24-httpd-manual, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:httpd24-mod_ldap, p-cpe:/a:redhat:enterprise_linux:httpd24-mod_session, p-cpe:/a:redhat:enterprise_linux:httpd24-httpd-devel, p-cpe:/a:redhat:enterprise_linux:httpd24-mod_proxy_html, p-cpe:/a:redhat:enterprise_linux:httpd24-mod_ssl, p-cpe:/a:redhat:enterprise_linux:httpd24-httpd-tools, p-cpe:/a:redhat:enterprise_linux:httpd24-httpd

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/29/2022

Vulnerability Publication Date: 8/16/2021

Reference Information

CVE: CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-44224, CVE-2022-22719, CVE-2022-22721, CVE-2022-23943, CVE-2022-26377, CVE-2022-28614, CVE-2022-28615, CVE-2022-29404, CVE-2022-30522, CVE-2022-30556, CVE-2022-31813

CWE: 125, 200, 348, 444, 476, 770, 787, 789, 908, 918

RHSA: 2022:6753

Detections

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