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CVE-2024-20309

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CVE-2024-20309

Published: Mar 27, 2024

Modified: Aug 9, 2024

PUBLISHED

CVSS v3.1

5.6

MEDIUM

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.

VendorProductVersions

Cisco

Cisco IOS XE Software

affected
3.7.0S
affected
3.7.1S
affected
3.7.2S
affected
3.7.3S
affected
3.7.4S

+338 more versions

Weaknesses (CWE)

CWE-828

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

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