#VU26356 Inconsistent interpretation of HTTP requests in Twisted Web - CVE-2020-10109
Published: March 24, 2020
Vulnerability identifier: #VU26356
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-10109
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Twisted Web
Twisted Web
Software vendor:
Twisted Matrix Labs
Twisted Matrix Labs
Description
The vulnerability allows a remote attacker to perform HTTP request smuggling attack.
The vulnerability exists due to insufficient input validation when processing Content-length and a Chunked encoding header, sent within one HTTP request. The Content-length header took precedence and the remainder of the request body was interpreted as a pipelined request. A remote attacker can send a specially crafted HTTP request to the affected web server and poison HTTP cache or perform other attacks against web application.
Remediation
Install updates from vendor's website.