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4.3 Medium

CVE-2023-20213 A vulnerability in the CDP processing feature of Cisco ISE could allow an unauthenticated, adjacent attacker to cause…

Description

A vulnerability in the CDP processing feature of Cisco ISE could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition of the CDP process on an affected device. This vulnerability is due to insufficient bounds checking when an affected device processes CDP traffic. An attacker could exploit this vulnerability by sending crafted CDP traffic to the device. A successful exploit could cause the CDP process to crash, impacting neighbor discovery and the ability of Cisco ISE to determine the reachability of remote devices. After a crash, the CDP process must be manually restarted using the cdp enable command in interface configuration mode.

Affected products and versions

Product Affected versions Fixed in
Cisco Identity Services Engine Software 3.2.0 No fix stated
Cisco Identity Services Engine Software 3.1.0 No fix stated
Cisco Identity Services Engine Software 3.0.0 No fix stated
Cisco Identity Services Engine Software 2.7.0 No fix stated
Cisco Identity Services Engine Software 2.6.0 No fix stated

References

Timeline

  1. Published
  2. Last modified

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