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

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

Install updates from vendor's website.

Vulnerable software versions

jbcs-httpd24-mod_security (Red Hat package): before 2.9.3-42.el7jbcs

jbcs-httpd24-mod_proxy_cluster (Red Hat package): before 1.3.20-10.el7jbcs

jbcs-httpd24-mod_md (Red Hat package): before 2.4.24-13.el7jbcs

jbcs-httpd24-mod_http2 (Red Hat package): before 1.15.19-43.el7jbcs

jbcs-httpd24-httpd (Red Hat package): before 2.4.57-15.el7jbcs

CPE2.3

• cpe:2.3:o:red_hat:jbcs-httpd24-mod_security_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:jbcs-httpd24-mod_proxy_cluster_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:jbcs-httpd24-mod_md_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:jbcs-httpd24-mod_http2_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:jbcs-httpd24-httpd_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://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.