CVE-2023-45539 Information disclosure in n/a
High 8.2
Published
Updated
Check this codebase for CVE-2023-45539 and fix it if it is affected.
What it is: CVE-2023-45539 is a high-severity vulnerability in n/a, published on 28 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-45539 in the wild and no public exploit code.
Affected packages and fixed versions:
- haproxy (Bitnami): affected all versions; fixed in 2.8.2
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-45539/ (Markdown: https://insights.sbomify.com/CVE-2023-45539/index.md)
Remote attackers can bypass path_end rules by using hash symbols in URIs, potentially exposing sensitive files or bypassing security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-45539?
CVE-2023-45539 is a high-severity vulnerability in n/a, published on 28 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-116
Which versions are affected by CVE-2023-45539?
1 open source package ship an affected version, including haproxy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
haproxy Bitnami | All versions | 2.8.2 |
Linux distribution packages (39)
haproxy AlmaLinux:8 | All versions | 1.8.27-5.el8_10.1 |
haproxy Red Hat:enterprise_linux:8::appstream | All versions | 0:1.8.27-5.el8_10.1 |
haproxy-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.8.27-5.el8_10.1 |
haproxy-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.8.27-5.el8_10.1 |
haproxy Red Hat:rhel_aus:8.2::appstream | All versions | 0:1.8.23-3.el8_2.1 |
haproxy-debuginfo Red Hat:rhel_aus:8.2::appstream | All versions | 0:1.8.23-3.el8_2.1 |
haproxy-debugsource Red Hat:rhel_aus:8.2::appstream | All versions | 0:1.8.23-3.el8_2.1 |
haproxy Red Hat:rhel_aus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debuginfo Red Hat:rhel_aus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debugsource Red Hat:rhel_aus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy Red Hat:rhel_aus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debuginfo Red Hat:rhel_aus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debugsource Red Hat:rhel_aus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy Red Hat:rhel_e4s:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debuginfo Red Hat:rhel_e4s:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debugsource Red Hat:rhel_e4s:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy Red Hat:rhel_e4s:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debuginfo Red Hat:rhel_e4s:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debugsource Red Hat:rhel_e4s:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.8.27-5.el8_8.1 |
haproxy-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.8.27-5.el8_8.1 |
haproxy-debugsource Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.8.27-5.el8_8.1 |
haproxy Red Hat:rhel_tus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debuginfo Red Hat:rhel_tus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy-debugsource Red Hat:rhel_tus:8.4::appstream | All versions | 0:1.8.27-2.el8_4.1 |
haproxy Red Hat:rhel_tus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debuginfo Red Hat:rhel_tus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy-debugsource Red Hat:rhel_tus:8.6::appstream | All versions | 0:1.8.27-4.el8_6.1 |
haproxy Rocky Linux:8 | All versions | 0:1.8.27-5.el8_10.1 |
haproxy SUSE:Linux Enterprise High Availability Extension 15 SP2 | All versions | 2.0.31-150200.11.26.1 |
haproxy SUSE:Linux Enterprise High Availability Extension 15 SP3 | All versions | 2.0.31-150200.11.26.1 |
haproxy SUSE:Linux Enterprise High Availability Extension 15 SP4 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy SUSE:Linux Enterprise High Availability Extension 15 SP5 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy SUSE:Linux Enterprise Micro 5.3 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy SUSE:Linux Enterprise Micro 5.4 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy SUSE:Linux Enterprise Micro 5.5 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy SUSE:Linux Enterprise Micro 5.5 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy openSUSE:Leap 15.4 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
haproxy openSUSE:Leap 15.5 | All versions | 2.4.22+git0.f8e3218e2-150400.3.19.1 |
Products include Haproxy Haproxy.
How do I fix CVE-2023-45539?
Upgrade haproxy to 2.8.2 or later.
Is CVE-2023-45539 being exploited?
There is no known exploitation of CVE-2023-45539 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as ALSA-2024:8849, AZL-32061, BIT-haproxy-2023-45539, CLSA-2023-1703008559, CLSA-2023-1703181305, CLSA-2023-1703181677 and 24 more.