Detections
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Amazon Linux 2 : httpd (ALAS-2023-1938)
critical Nessus Plugin ID 171826
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Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of httpd installed on the remote host is prior to 2.4.55-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-1938 advisory.- A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier. (CVE-2006-20001)
- Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.54 and prior versions.
(CVE-2022-36760)
- Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client. (CVE-2022-37436)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update httpd' to update your system.See Also
https://alas.aws.amazon.com/../../faqs.html
https://alas.aws.amazon.com/cve/html/CVE-2006-20001.html
https://alas.aws.amazon.com/cve/html/CVE-2022-36760.html
Plugin Details
Severity: Critical
ID: 171826
File Name: al2_ALAS-2023-1938.nasl
Version: 1.0
Type: local
Agent: unix
Published: 2/23/2023
Updated: 2/23/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.5
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2022-36760
CVSS v3
Risk Factor: Critical
Base Score: 9
Temporal Score: 7.8
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:httpd-tools, p-cpe:/a:amazon:linux:mod_ldap, p-cpe:/a:amazon:linux:mod_proxy_html, p-cpe:/a:amazon:linux:mod_session, p-cpe:/a:amazon:linux:mod_ssl, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:httpd-devel, p-cpe:/a:amazon:linux:httpd-debuginfo, p-cpe:/a:amazon:linux:mod_md, p-cpe:/a:amazon:linux:httpd, p-cpe:/a:amazon:linux:httpd-manual, p-cpe:/a:amazon:linux:httpd-filesystem
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 2/17/2023
Vulnerability Publication Date: 1/17/2023