Input validation error in HAProxy - CVE-2023-45539

Vulnerability identifier: #VU83902

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-45539

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input when processing the "#" character in the URI. A remote attacker can pass specially crafted URI to the application and view otherwise restricted file or potentially manipulate data.

HAProxy
Amazon Linux AMI
Debian Linux
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
openSUSE Leap Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Micro
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
openSUSE Leap
Ubuntu
openEuler
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
haproxy (Ubuntu package)
haproxy (Red Hat package)
cri-o (Red Hat package)
haproxy-debuginfo
haproxy-debugsource
haproxy
haproxy (Debian package)
haproxy-help
haproxy-doc
podman (Red Hat package)
ose-aws-ecr-image-credential-provider (Red Hat package)
openshift-ansible (Red Hat package)
openshift (Red Hat package)
Red Hat OpenShift Container Platform

Install updates from vendor's website.

HAProxy - update to 2.8.2
haproxy (Ubuntu package) - addressed in versions Ubuntu Pro, 2.0.31-0ubuntu0.3, 2.4.22-0ubuntu0.22.04.3, 2.6.9-1ubuntu1.2
haproxy (Red Hat package) - addressed in versions 1.8.23-3.el8_2.1, 1.8.27-2.el8_4.1, 1.8.27-4.el8_6.1, 1.8.27-5.el8_8.1, 1.8.27-5.el8_10.1, 2.4.17-6.el9_2.2, 2.4.22-3.el9_3, 2.6.13-4.rhaos4.14.el8, 2.6.13-4.rhaos4.15.el8
cri-o (Red Hat package) - addressed in versions 1.27.8-6.rhaos4.14.git06fccaa.el8, 1.27.8-6.rhaos4.14.git06fccaa.el9
haproxy-debuginfo - addressed in versions 2.0.31-150100.8.34.1, 2.0.31-150200.11.26.1, 2.4.22+git0.f8e3218e2-150400.3.19.1
haproxy-debugsource - addressed in versions 2.0.31-150100.8.34.1, 2.0.31-150200.11.26.1, 2.4.22+git0.f8e3218e2-150400.3.19.1
haproxy - addressed in versions 2.0.31-150100.8.34.1, 2.0.31-150200.11.26.1, 2.4.22+git0.f8e3218e2-150400.3.19.1
haproxy (Debian package) - addressed in versions 2.2.9-2+deb11u6, 2.6.12-1+deb12u1
haproxy-debugsource - addressed in versions 2.2.16-7, 2.6.6-8
haproxy-help - addressed in versions 2.2.16-7, 2.6.6-8
haproxy-debuginfo - addressed in versions 2.2.16-7, 2.6.6-8
haproxy - addressed in versions 2.2.16-7, 2.6.6-8
haproxy - addressed in versions 2.4.22-3.0.1, 3.0.5-2
haproxy - update to 2.8.3-1
haproxy-doc - update to 3.0.5-2
podman (Red Hat package) - addressed in versions 4.4.1-26.2.rhaos4.15.el8, 4.4.1-26.2.rhaos4.15.el9
ose-aws-ecr-image-credential-provider (Red Hat package) - addressed in versions 4.14.0-202408222141.p0.g9a7820e.assembly.stream.el8, 4.14.0-202408222141.p0.g9a7820e.assembly.stream.el9
openshift-ansible (Red Hat package) - addressed in versions 4.14.0-202408291409.p0.g0a97acb.assembly.stream.el8, 4.14.0-202408291409.p0.g0a97acb.assembly.stream.el9
openshift (Red Hat package) - addressed in versions 4.14.0-202409041843.p0.g03a907c.assembly.stream.el8, 4.14.0-202409041843.p0.g03a907c.assembly.stream.el9
Red Hat OpenShift Container Platform - addressed in versions 4.14.36, 4.15.24

• https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html
• https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6
• https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html

• Multiple vulnerabilities in HAProxy
• Ubuntu update for haproxy
• SUSE update for haproxy
• SUSE update for haproxy
• SUSE update for haproxy
• openEuler update for haproxy
• openEuler 22.03 LTS SP1 update for haproxy
• openEuler 22.03 LTS SP2 update for haproxy
• Red Hat Enterprise Linux 9.2 Extended Update Support update for haproxy
• Red Hat Enterprise Linux 9 update for haproxy
• SUSE update for haproxy
• Debian update for haproxy
• Ubuntu update for haproxy
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.15 packages
• Amazon Linux AMI update for haproxy
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.14
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.14
• Red Hat Enterprise Linux 8 update for haproxy
• Red Hat Enterprise Linux 8 update for haproxy
• Red Hat Enterprise Linux 8 update for haproxy
• Red Hat Enterprise Linux 8 update for haproxy
• Red Hat Enterprise Linux 8 update for haproxy
• Anolis OS update for haproxy
• Anolis OS update for haproxy