Vulnerability identifier: #VU74224
Vulnerability risk: Medium
CVSSv4.0: 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:P/U:Green]
CVE-ID:
CWE-ID:
CWE-444
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
HAProxy
Server applications /
IDS/IPS systems, Firewalls and proxy servers
Vendor: HAProxy
Description
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
HAProxy: 2.6.0 - 2.6.7, 2.7.0
External links
https://jvn.jp/en/jp/JVN38170084/index.html
https://git.haproxy.org/?p=haproxy-2.7.git;a=commit;h=3ca4223c5e1f18a19dc93b0b09ffdbd295554d46
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. However, proof of concept for this vulnerability is available.