CVE-2024-9448

Summary

On affected platforms running Arista EOS with Traffic Policies configured the vulnerability will cause received untagged packets not to hit Traffic Policy rules that they are expected to hit. If the rule was to drop the packet, the packet will not be dropped and instead will be forwarded as if the rule was not in place. This could lead to packets being delivered to unexpected destinations.

Affected Software

VendorProductVersion RangeStatus
Arista NetworksEOS4.33.0 <= 4.33.0Faffected
Arista NetworksEOS4.32.0 <= 4.32.3Maffected
Arista NetworksEOS4.31.0 <= 4.31.5Maffected
Arista NetworksEOS4.30.0 <= 4.30.8Maffected

Weaknesses

  • CWE-1284: CWE-1284 Improper Validation of Specified Quantity in Input

Workarounds

There is no mitigation other than to not use the Traffic Policy feature where it would be expected to match on receipt of untagged packets.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References