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Cisco XE: CVE-2024-20309: Cisco IOS XE Software Auxiliary Asynchronous Port Denial of Service Vulnerability

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Cisco XE: CVE-2024-20309: Cisco IOS XE Software Auxiliary Asynchronous Port Denial of Service Vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/28/2024
Created
03/29/2024
Added
03/28/2024
Modified
04/22/2024

Description

A vulnerability in auxiliary asynchronous port (AUX) functions of Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload or stop responding. This vulnerability is due to the incorrect handling of specific ingress traffic when flow control hardware is enabled on the AUX port. An attacker could exploit this vulnerability by reverse telnetting to the AUX port and sending specific data after connecting. A successful exploit could allow the attacker to cause the device to reset or stop responding, resulting in a denial of service (DoS) condition.

Solution(s)

  • cisco-xe-upgrade-latest

References

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