Exploit for #VU56401 Inconsistent interpretation of HTTP requests in HAProxy

Vulnerability identifier: #VU56401

Vulnerability risk: Medium

CVSSv4.0: 5.5 [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:P/U:Green]

CVE-ID: CVE-2021-40346

CWE-ID: CWE-444

Exploitation vector: Network

Exploits in database: 3

• September 12, 2021
  • CVE-2021-40346 () [Github]
  • CVE-2021-40346-POC (CVE-2021-40346 integer overflow enables http smuggling) [Github]
  • CVE-2021-40346 (CVE-2021-40346 PoC (HAProxy HTTP Smuggling)) [Github]

Vulnerable software:
HAProxy
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: HAProxy