HTTP request smuggling in HTTP::Daemon

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU65327

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-31081

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

Exploit availability: No

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

HTTP-Daemon: 6.00 - 6.14

CPE2.3

• cpe:2.3:a:OALDERS:http-daemon:6.00:*:*:*:*:perl:*:*
• cpe:2.3:a:OALDERS:http-daemon:6.01:*:*:*:*:perl:*:*
• cpe:2.3:a:OALDERS:http-daemon:6.02:*:*:*:*:perl:*:*

External links

https://github.com/libwww-perl/HTTP-Daemon/commit/e84475de51d6fd7b29354a997413472a99db70b2
https://github.com/libwww-perl/HTTP-Daemon/commit/8dc5269d59e2d5d9eb1647d82c449ccd880f7fd0
https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn
https://datatracker.ietf.org/doc/html/rfc7230#section-9.5
https://github.com/libwww-perl/HTTP-Daemon/security/advisories/GHSA-cg8c-pxmv-w7cf
https://metacpan.org/release/HTTP-Daemon/
https://cwe.mitre.org/data/definitions/444.html

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.