CVE-2023-45539
First published: Tue Nov 28 2023(Updated: )
HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule, such as routing index.html#.png to a static server.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Haproxy Haproxy | <2.8.2 | |
| debian/haproxy | 2.2.9-2+deb11u6 2.6.12-1+deb12u1 2.9.10-1 | |
| redhat/haproxy | <2.8.2 | 2.8.2 |
Remedy
https://git.haproxy.org/?p=haproxy-2.6.git;a=commit;h=832b672eee54866c7a42a1d46078cc9ae0d544d9
Remedy
https://git.haproxy.org/?p=haproxy-2.2.git;a=commit;h=178cea76b1c9d9413afa6961b6a4576fcb5b26fa
Remedy
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6
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Reference Links
- https://git.haproxy.org/?p=haproxy.git;a=commit;h=2eab6d354322932cfec2ed54de261e4347eca9a6
- https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html
- https://www.mail-archive.com/haproxy@formilux.org/msg43861.html
- https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html
- https://launchpad.net/bugs/cve/CVE-2023-45539
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6
- https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html
- https://github.com/haproxy/haproxy/commit/2eab6d354322932cfec2ed54de261e4347eca9a6
- https://git.haproxy.org/?p=haproxy-2.6.git;a=commit;h=832b672eee54866c7a42a1d46078cc9ae0d544d9
- https://git.haproxy.org/?p=haproxy-2.2.git;a=commit;h=178cea76b1c9d9413afa6961b6a4576fcb5b26fa
- https://security-tracker.debian.org/tracker/CVE-2023-45539
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45539
- https://nvd.nist.gov/vuln/detail/CVE-2023-45539
- https://ubuntu.com/security/CVE-2023-45539
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2253038
- https://access.redhat.com/errata/RHSA-2024:1089
- https://access.redhat.com/errata/RHSA-2024:1142
- https://access.redhat.com/errata/RHSA-2024:4853
- https://access.redhat.com/errata/RHSA-2024:6412
- https://access.redhat.com/errata/RHSA-2024:8874
- https://access.redhat.com/errata/RHSA-2024:8849
- https://access.redhat.com/errata/RHSA-2024:9945
- https://bugzilla.redhat.com/show_bug.cgi?id=2253037
Frequently Asked Questions
What is CVE-2023-45539?
CVE-2023-45539 is a vulnerability in HAProxy before 2.8.2 that allows remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule.
How severe is CVE-2023-45539?
CVE-2023-45539 has a severity rating of 8.2, which is considered high.
What is the affected software for CVE-2023-45539?
The affected software for CVE-2023-45539 is HAProxy before version 2.8.2.
How can remote attackers exploit CVE-2023-45539?
Remote attackers can exploit CVE-2023-45539 by including '#' as part of the URI component, which may lead to obtaining sensitive information or misinterpretation of a path_end rule.
How can I fix CVE-2023-45539?
To fix CVE-2023-45539, update HAProxy to version 2.8.2 or later.
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