# CVE-2024-3596: RADIUS Protocol under RFC2865 is vulnerable to forgery attacks. > A local attacker can forge RADIUS responses by exploiting MD5 collision weaknesses, bypassing authentication checks in systems relying on RFC 2865. - **Severity:** Critical 9.0 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 9 Jul 2024 - **Updated:** 15 Oct 2026 - **Also known as:** ALPINE-CVE-2024-3596, ALSA-2024:4935, ALSA-2024:4936, ALSA-2024:8860, ALSA-2024:9474, CLSA-2025-1739387995, CLSA-2025-1739812201, CLSA-2025-1739812242, CLSA-2025-1739962899, CLSA-2025-1740132172, CLSA-2025-1740132301, CLSA-2025-1743103421, CLSA-2025-1748001506, CLSA-2026-1790245780, DEBIAN-CVE-2024-3596, GHSA-3g8x-wqfp-q876, MGASA-2024-0264, MGASA-2024-0385, OESA-2024-1878, OESA-2024-2380, RHSA-2024:4826, RHSA-2024:4828, RHSA-2024:4829, RHSA-2024:4874, RHSA-2024:4911, RHSA-2024:4912, RHSA-2024:4913, RHSA-2024:4935, RHSA-2024:4936, RHSA-2024:8461, RHSA-2024:8577, RHSA-2024:8788, RHSA-2024:8789, RHSA-2024:8791, RHSA-2024:8792, RHSA-2024:8794, RHSA-2024:8860, RHSA-2024:9474, RHSA-2024:9547, RLSA-2024:4935, RLSA-2024:4936, RLSA-2024:8860, RLSA-2024:9474, SUSE-SU-2024:2359-1, SUSE-SU-2024:2361-1, SUSE-SU-2024:2366-1, SUSE-SU-2024:2367-1, UBUNTU-CVE-2024-3596, USN-7055-1, USN-7257-1, openSUSE-SU-2026:10528-1 ## What is CVE-2024-3596? CVE-2024-3596 is a critical vulnerability in Broadcom Brocade Sannav, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authenticator signature. Weakness: CWE-924 (Improper Enforcement of Message Integrity During Transmission in a Communication Channel), CWE-354 (Improper Validation of Integrity Check Value) ## Which versions are affected by CVE-2024-3596? It affects 4 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `freeradius` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-devel` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-doc` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-krb5` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-ldap` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-mysql` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-perl` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-postgresql` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-rest` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-sqlite` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-unixODBC` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius-utils` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `krb5-devel` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `krb5-libs` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `krb5-pkinit` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `krb5-server` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `krb5-server-ldap` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `krb5-workstation` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `libkadm5` | AlmaLinux:8 | All versions | 1.18.2-30.el8_10 | | `python3-freeradius` | AlmaLinux:8 | All versions | 3.0.20-15.module_el8.10.0+3873+5b7fed0f | | `freeradius` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-devel` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-doc` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-krb5` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-ldap` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-mysql` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-perl` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-postgresql` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-rest` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-sqlite` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-unixODBC` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `freeradius-utils` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | | `krb5-devel` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `krb5-libs` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `krb5-pkinit` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `krb5-server` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `krb5-server-ldap` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `krb5-workstation` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `libkadm5` | AlmaLinux:9 | All versions | 1.21.1-4.el9_5 | | `python3-freeradius` | AlmaLinux:9 | All versions | 3.0.21-40.el9_4 | Products: Broadcom Brocade Sannav, Broadcom Fabric Operating System, Freeradius Freeradius, Sonicwall Sonicos. ## How do I fix CVE-2024-3596? Apply the vendor's patch. ## Is CVE-2024-3596 being exploited? There is no known exploitation of CVE-2024-3596 in the wild and no public exploit code. Public exploit code: - https://github.com/alperenugurlu/CVE-2024-3596-Detector (github_poc): https://github.com/alperenugurlu/CVE-2024-3596-Detector ## Other vulnerabilities in Broadcom Brocade Sannav - [CVE-2019-16211](https://insights.sbomify.com/CVE-2019-16211/): Hardcoded credentials in Brocade SANnav (critical 9.8) - [CVE-2019-16212](https://insights.sbomify.com/CVE-2019-16212/): A vulnerability in Brocade SANnav versions before v2.1.0 could allow a remote authenticated attacker to conduct an LDAP injection. (high 8.8) - [CVE-2019-16205](https://insights.sbomify.com/CVE-2019-16205/): Weak cryptography in Brocade SANnav (high 8.8) - [CVE-2024-2240](https://insights.sbomify.com/CVE-2024-2240/): Docker implementation in Brocade SANnav is missing Audit Rules. (high 8.6) - [CVE-2025-1053](https://insights.sbomify.com/CVE-2025-1053/): Brocade SANnav encryption key is logged in the debug logs (high 8.6) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2024-3596 and fix it if it is affected. What it is: CVE-2024-3596 is a critical vulnerability in Broadcom Brocade Sannav, published on 9 Jul 2024. 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-2024-3596 in the wild and no public exploit code. Affected product: Broadcom Brocade Sannav. No package-level version data is available, so check the vendor advisory linked from the reference page. 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-2024-3596/ (Markdown: https://insights.sbomify.com/CVE-2024-3596/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2024-3596 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-3596 - OSV: https://osv.dev/vulnerability/CVE-2024-3596 --- From sbomify Insights: https://insights.sbomify.com/CVE-2024-3596/ Summaries are generated and may contain mistakes; the official description above is the record.