CVE-2024-3596: Freeradius vulnerability (CVSS 9.0)

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityHigh

Privileges requiredNone

User interactionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Broadcom Brocade Sannavall versions

Freeradius< 3.0.27

Broadcom Fabric Operating Systemall versions

SonicWall Sonicosall versions

Remediation

Fixed in

Freeradius≥ 3.0.27

References

https://cert-portal.siemens.com/productcert/html/ssa-364175.html
https://cert-portal.siemens.com/productcert/html/ssa-723487.html
https://cert-portal.siemens.com/productcert/html/ssa-770770.html
https://cert-portal.siemens.com/productcert/html/ssa-794185.html
https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/Technical Description
https://datatracker.ietf.org/doc/html/rfc2865Technical Description
https://networkradius.com/assets/pdf/radius_and_md5_collisions.pdfThird Party Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014Third Party Advisory
https://security.netapp.com/advisory/ntap-20240822-0001/Third Party Advisory
https://today.ucsd.edu/story/computer-scientists-discover-vulnerabilities-in-a-popular-security-protocolThird Party Advisory

and 3 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2024-3596 being actively exploited?

CVE-2024-3596 is not in the CISA KEV catalog. Its EPSS exploit probability is 14.9%.

How severe is CVE-2024-3596?

CVE-2024-3596 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 14.9% probability of exploitation.

Which products are affected by CVE-2024-3596?

Affected products include Broadcom Brocade Sannav, Freeradius, Broadcom Fabric Operating System, SonicWall Sonicos.

How do I fix CVE-2024-3596?

Upgrade affected software to a fixed version, for example Freeradius 3.0.27 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-3596 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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