Inconsistent interpretation of HTTP requests in HAProxy - CVE-2023-25950
Published: March 31, 2023 / Updated: April 5, 2024
Vulnerability identifier: #VU74224
CSH Severity: Medium
CVSS v4: 5.1 [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]
CVE-ID: CVE-2023-25950
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to perform 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.
Affected software
HAProxy
openEuler
haproxy
haproxy-debugsource
haproxy-debuginfo
haproxy-help
openEuler
haproxy
haproxy-debugsource
haproxy-debuginfo
haproxy-help
How to mitigate CVE-2023-25950
Install updates from vendor's website.
HAProxy - addressed in versions 2.6.8, 2.7.1
haproxy - update to 2.6.6-3
haproxy-debugsource - update to 2.6.6-3
haproxy-debuginfo - update to 2.6.6-3
haproxy-help - update to 2.6.6-3
haproxy - update to 2.6.6-3
haproxy-debugsource - update to 2.6.6-3
haproxy-debuginfo - update to 2.6.6-3
haproxy-help - update to 2.6.6-3