High severity · published Nov 28, 2023
CVE-2023-45539
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…
8.2
CVSS
1.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Haproxy · Haproxy
before 2.8.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-45539
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-45539
Broken Link
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html
Mailing List
https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html
Release Notes
https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html
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