HTTP Request Smuggling in Agoo
Published: October 20, 2020
SECURITY IDENTIFIERS
- CVE: CVE-2020-7670 (NVD)
- GHSA: GHSA-h385-52j6-9984
- Vendor Advisory: https://github.com/ohler55/agoo/issues/88
GEM
SEVERITY
CVSS v3.x: 7.5 (High)
PATCHED VERSIONS
>= 2.13.0
DESCRIPTION
agoo through 2.12.3 allows request smuggling attacks where agoo is used as a backend and a frontend proxy also being vulnerable. It is possible to conduct HTTP request smuggling attacks by sending the Content-Length header twice. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for TE:CL smuggling attacks.