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THREATINT
PUBLISHED

CVE-2023-40457



Description

The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected network) to cause a denial of service (BGP session reset) because of BGP attribute error mishandling (for attribute 21 and 25). NOTE: the vendor disputes this because it is "evaluating support for RFC 7606 as a future feature" and believes that "customers that have chosen to not require or implement RFC 7606 have done so willingly and with knowledge of what is needed to defend against these types of attacks."

Reserved 2023-08-14 | Published 2024-11-10 | Updated 2024-11-12 | Assigner mitre

References

supportdocs.extremenetworks.com/...entation/extremexos-32-5/

blog.benjojo.co.uk/...p-path-attributes-grave-error-handling

blog.benjojo.co.uk/asset/JgH8G5duO1

cve.org (CVE-2023-40457)

nvd.nist.gov (CVE-2023-40457)

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