Blast-RADIUS is a vulnerability that affects the RADIUS protocol (CVE-2024-3596)
25028
24 September 2024
24 September 2024
CLOSED
MEDIUM
6.5
CVE-2024-3596
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Brocade Security Advisory ID |
BSA-2024-2632 |
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Component |
Radius Protocol |
|
|
|
Summary
A vulnerability in the verification of RADIUS Response from a RADIUS server has been disclosed by a team of researchers from UC San Diego and their partners. An attacker, with access to the network where the RADIUS protocol is being transmitted, can spoof a UDP-based RADIUS Response packet to modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response, with almost any content, completely under the attackers control.
For additional information regarding this vulnerability, please see https://blastradius.fail.
Products Affected
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All version of Brocade Fabric OS configured to use Radius with no Transport Layer Security (TLS).
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All versions of Brocade SANnav configured to use Radius.
Products Confirmed Not Affected
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Brocade ASCG: [VEX Justification: Component_not_present]
Solution
- Brocade Fabric OS is not vulnerable when Radius is configured to use PEAP-MSCHAPv2 which is a supported TLS channel mode. However, Brocade Fabric OS is vulnerable when configured to use RADIUS with PAP or CHAP. Brocade recommends customers to configure and use PEAP-MSCHAPv2 to avoid this vulnerability when using RADIUS.
- Note: Brocade Fabric OS Administration guide provides instruction on PEAP-MSCHAPv2 configuration. Please refer to section Appendix A: Setting Up the AAA Server Configuration.
- Note: Brocade Fabric OS Administration guide provides instruction on PEAP-MSCHAPv2 configuration. Please refer to section Appendix A: Setting Up the AAA Server Configuration.
- Brocade SANnav is vulnerable via PAP or CHAP when configured to use RADIUS. Brocade recommends to use alternative protocols, i.e. LDAP.
Revision History
|
Version |
Change |
Date |
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1.0 |
Initial Publication |
September 24, 2024 |
Disclaimer
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