CVE-2019-16792 — HTTP Request Smuggling in Waitress

CWE-444 — HTTP Request Smuggling7 documents5 sources
Severity
7.5HIGHNVD
CNA7.1
EPSS
0.9%
top 25.07%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Pylons WaitressAgendaless WaitressDebian Linux+1 more
Timeline
PublishedJan 22
Latest updateMay 24

Description

Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitres…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5pylons/waitress1.3.1

Also affects: Debian Linux 9.0

Patches

Patch: github.com ↗Patch: www.oracle.com ↗Patch: github.com ↗

🔴Vulnerability Details

5
OSV
Duplicate Advisory: Inconsistent Interpretation of HTTP Requests in Waitress↗2022-05-24
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OSV
CVE-2019-16792: Waitress through version 1↗2020-01-22
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CVEList
HTTP Request Smuggling: Content-Length Sent Twice in Waitress↗2020-01-22
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GHSA
HTTP Request Smuggling: Content-Length Sent Twice in Waitress↗2019-12-20
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OSV
HTTP Request Smuggling: Content-Length Sent Twice in Waitress↗2019-12-20
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📋Vendor Advisories

1
Debian
CVE-2019-16792: waitress - Waitress through version 1.3.1 allows request smuggling by sending the Content-L...↗2019
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CVE-2019-16792 — HTTP Request Smuggling in Waitress | cvebase