Amazon Linux AMI update for httpd

Published: 2024-08-06

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-38709 CVE-2024-24795
CWE-ID	CWE-113
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system httpd Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) HTTP response splitting

EUVDB-ID: #VU88151

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38709

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

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.

Mitigation

Update the affected packages:

aarch64:
    mod_session-2.4.59-2.amzn2023.aarch64
    httpd-tools-2.4.59-2.amzn2023.aarch64
    httpd-tools-debuginfo-2.4.59-2.amzn2023.aarch64
    mod_session-debuginfo-2.4.59-2.amzn2023.aarch64
    mod_lua-debuginfo-2.4.59-2.amzn2023.aarch64
    mod_lua-2.4.59-2.amzn2023.aarch64
    mod_proxy_html-debuginfo-2.4.59-2.amzn2023.aarch64
    httpd-devel-2.4.59-2.amzn2023.aarch64
    mod_ldap-debuginfo-2.4.59-2.amzn2023.aarch64
    httpd-debuginfo-2.4.59-2.amzn2023.aarch64
    mod_proxy_html-2.4.59-2.amzn2023.aarch64
    httpd-2.4.59-2.amzn2023.aarch64
    mod_ssl-2.4.59-2.amzn2023.aarch64
    mod_ldap-2.4.59-2.amzn2023.aarch64
    httpd-core-2.4.59-2.amzn2023.aarch64
    httpd-core-debuginfo-2.4.59-2.amzn2023.aarch64
    mod_ssl-debuginfo-2.4.59-2.amzn2023.aarch64
    httpd-debugsource-2.4.59-2.amzn2023.aarch64

noarch:
    httpd-filesystem-2.4.59-2.amzn2023.noarch
    httpd-manual-2.4.59-2.amzn2023.noarch

src:
    httpd-2.4.59-2.amzn2023.src

x86_64:
    httpd-debugsource-2.4.59-2.amzn2023.x86_64
    mod_proxy_html-2.4.59-2.amzn2023.x86_64
    httpd-tools-2.4.59-2.amzn2023.x86_64
    mod_ssl-2.4.59-2.amzn2023.x86_64
    mod_lua-2.4.59-2.amzn2023.x86_64
    httpd-tools-debuginfo-2.4.59-2.amzn2023.x86_64
    httpd-debuginfo-2.4.59-2.amzn2023.x86_64
    mod_lua-debuginfo-2.4.59-2.amzn2023.x86_64
    mod_ssl-debuginfo-2.4.59-2.amzn2023.x86_64
    mod_ldap-2.4.59-2.amzn2023.x86_64
    httpd-devel-2.4.59-2.amzn2023.x86_64
    mod_session-2.4.59-2.amzn2023.x86_64
    mod_proxy_html-debuginfo-2.4.59-2.amzn2023.x86_64
    mod_session-debuginfo-2.4.59-2.amzn2023.x86_64
    mod_ldap-debuginfo-2.4.59-2.amzn2023.x86_64
    httpd-2.4.59-2.amzn2023.x86_64
    httpd-core-debuginfo-2.4.59-2.amzn2023.x86_64
    httpd-core-2.4.59-2.amzn2023.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

httpd: before 2.4.59-2

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2024-607.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) HTTP response splitting

EUVDB-ID: #VU88152