HTTP response splitting in Red Hat JBoss Core Services 1 for RHEL 8 and RHEL 7

1) HTTP response splitting

EUVDB-ID: #VU88151

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

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

Install updates from vendor's website.

Vulnerable software versions

jbcs-httpd24-mod_security (Red Hat package): before 2.9.3-42.el8jbcs

jbcs-httpd24-mod_proxy_cluster (Red Hat package): before 1.3.20-10.el8jbcs

jbcs-httpd24-mod_md (Red Hat package): before 2.4.24-13.el8jbcs

jbcs-httpd24-mod_http2 (Red Hat package): before 1.15.19-43.el8jbcs

jbcs-httpd24-httpd (Red Hat package): before 2.4.57-15.el8jbcs

CPE2.3

External links

http://access.redhat.com/errata/RHSA-2024:6927

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.