cve-2019-18277
Vulnerability from cvelistv5
Published
2019-10-23 13:07
Modified
2024-08-05 01:47
Severity ?
Summary
A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the "chunked" value were not being correctly rejected. The impact was limited but if combined with the "http-reuse always" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00016.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00019.html
cve@mitre.orghttps://git.haproxy.org/?p=haproxy-2.0.git%3Ba=commit%3Bh=196a7df44d8129d1adc795da020b722614d6a581
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/05/msg00045.html
cve@mitre.orghttps://nathandavison.com/blog/haproxy-http-request-smugglingExploit, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4174-1/
cve@mitre.orghttps://www.mail-archive.com/haproxy%40formilux.org/msg34926.html
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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