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CVE-2022-31081 for HTTP::Daemon
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briandfoy committed Jul 16, 2022
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---
- affected_versions: '<6.15'
cves:
- CVE-2022-31081
description: >
HTTP::Daemon is a simple http server class written in perl.
Versions prior to 6.15 are subject to a vulnerability which could
potentially be exploited to gain privileged access to APIs or poison
intermediate caches. It is uncertain how large the risks are, most
Perl based applications are served on top of Nginx or Apache, not on
the `HTTP::Daemon`. This library is commonly used for local
development and tests. Users are advised to update to resolve this
issue. Users unable to upgrade may add additional request handling
logic as a mitigation. After calling `my $rqst = $conn->get_request()`
one could inspect the returned `HTTP::Request` object. Querying the
'Content-Length' (`my $cl = $rqst->header('Content-Length')`) will
show any abnormalities that should be dealt with by a `400` response.
Expected strings of 'Content-Length' SHOULD consist of either a single
non-negative integer, or, a comma separated repetition of that number.
(that is `42` or `42, 42, 42`). Anything else MUST be rejected.
distribution: HTTP-Daemon
fixed_versions: '>6.15'
id: CPANSA-HTTP-Daemon-2022-31081
references:
- https://github.com/libwww-perl/HTTP-Daemon/commit/e84475de51d6fd7b29354a997413472a99db70b2
- https://github.com/libwww-perl/HTTP-Daemon/commit/8dc5269d59e2d5d9eb1647d82c449ccd880f7fd0
- https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn
- https://datatracker.ietf.org/doc/html/rfc7230#section-9.5
- https://github.com/libwww-perl/HTTP-Daemon/security/advisories/GHSA-cg8c-pxmv-w7cf
- http://metacpan.org/release/HTTP-Daemon/
- https://cwe.mitre.org/data/definitions/444.html
reported: 2022-06-27
severity: medium

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