Red Hat Enterprise Linux 6 Extended Lifecycle Support update for httpd

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU61286

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22720

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems): 6.0

Red Hat Enterprise Linux Server - Extended Life Cycle Support: 6.0

httpd (Red Hat package): 2.2.15-5.el6 - 2.2.15-69.el6

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_extended_life_cycle_support_for_ibm_z_systems:6.0:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_extended_life_cycle_support:6.0:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:httpd_redhat_package:2.2.15-5.el6:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:httpd_redhat_package:2.2.15-9.el6:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:httpd_redhat_package:2.2.15-9.el6_1:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2022:1173

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.