Vulnerability in Twisted
CVE-2020-10109
In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability. When presented with a content-length and a chunked encoding header, the content-length took precedence and the remainder of the request body was interpreted as a pipelined request.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (88.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Twisted
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 31, 32
Weakness classification (CWE)
References
- know.bishopfox.com/advisories (Exploit, Third Party Advisory)
- know.bishopfox.com/advisories/twisted-version-19.10.0 (Third Party Advisory, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/4308-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4308-1/ (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202007-24 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/02/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10109?
- CVE-2020-10109 is a critical-severity vulnerability in Twisted, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.8/10. Published 2020-03-12.
- How severe is CVE-2020-10109?
- Critical severity. CVSS v3 base score is 9.8 out of 10.