ID CVE-2020-10108
Summary In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability. When presented with two content-length headers, it ignored the first header. When the second content-length value was set to zero, the request body was interpreted as a pipelined request.
References
Vulnerable Configurations
  • cpe:2.3:a:twistedmatrix:twisted:8.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:8.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:8.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:8.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:8.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:8.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:8.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:8.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:10.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:10.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:10.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:10.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:10.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:10.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:11.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:11.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:11.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:11.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:12.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:12.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:12.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:12.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:12.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:12.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:12.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:12.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:13.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:13.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:13.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:13.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:13.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:13.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:14.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:14.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:14.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:14.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:14.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:14.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:15.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:15.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:16.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:16.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:17.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:17.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:17.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:17.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:17.9.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:17.9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:18.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:18.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:18.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:18.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:18.9.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:18.9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:19.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:19.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:19.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:19.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:19.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:19.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:twistedmatrix:twisted:19.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:twistedmatrix:twisted:19.10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
  • cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
    cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
  • cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*
    cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*
CVSS
Base: 7.5 (as of 01-04-2022 - 14:06)
Impact:
Exploitability:
CWE CWE-444
CAPEC
  • HTTP Request Splitting
    HTTP Request Splitting (also known as HTTP Request Smuggling) is an attack pattern where an attacker attempts to insert additional HTTP requests in the body of the original (enveloping) HTTP request in such a way that the browser interprets it as one request but the web server interprets it as two. There are several ways to perform HTTP request splitting attacks. One way is to include double Content-Length headers in the request to exploit the fact that the devices parsing the request may each use a different header. Another way is to submit an HTTP request with a "Transfer Encoding: chunked" in the request header set with setRequestHeader to allow a payload in the HTTP Request that can be considered as another HTTP Request by a subsequent parsing entity. A third way is to use the "Double CR in an HTTP header" technique. There are also a few less general techniques targeting specific parsing vulnerabilities in certain web servers.
  • HTTP Request Smuggling
    HTTP Request Smuggling results from the discrepancies in parsing HTTP requests between HTTP entities such as web caching proxies or application firewalls. Entities such as web servers, web caching proxies, application firewalls or simple proxies often parse HTTP requests in slightly different ways. Under specific situations where there are two or more such entities in the path of the HTTP request, a specially crafted request is seen by two attacked entities as two different sets of requests. This allows certain requests to be smuggled through to a second entity without the first one realizing it.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:P/I:P/A:P
redhat via4
advisories
bugzilla
id 1813439
title CVE-2020-10108 python-twisted: HTTP request smuggling when presented with two Content-Length headers
oval
OR
  • comment Red Hat Enterprise Linux must be installed
    oval oval:com.redhat.rhba:tst:20070304026
  • AND
    • comment Red Hat Enterprise Linux 6 is installed
      oval oval:com.redhat.rhba:tst:20111656003
    • comment python-twisted-web is earlier than 0:8.2.0-6.el6_10
      oval oval:com.redhat.rhsa:tst:20201962001
    • comment python-twisted-web is signed with Red Hat redhatrelease2 key
      oval oval:com.redhat.rhsa:tst:20161978002
rhsa
id RHSA-2020:1962
released 2020-04-29
severity Important
title RHSA-2020:1962: python-twisted-web security update (Important)
rpms
  • python-twisted-web-0:12.1.0-7.el7_8
  • python-twisted-web-0:8.2.0-6.el6_10
refmap via4
fedora
  • FEDORA-2020-16dc0da400
  • FEDORA-2020-2136b020f2
gentoo GLSA-202007-24
misc
ubuntu
  • USN-4308-1
  • USN-4308-2
Last major update 01-04-2022 - 14:06
Published 12-03-2020 - 13:15
Last modified 01-04-2022 - 14:06
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