CVE-2017-12231

Basic Information

CVE State

PUBLISHED

Reserved Date

August 03, 2017

Published Date

September 28, 2017

Last Updated

November 15, 2024

Vendor

Cisco

Product

Cisco IOS

Description

A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper translation of H.323 messages that use the Registration, Admission, and Status (RAS) protocol and are sent to an affected device via IPv4 packets. An attacker could exploit this vulnerability by sending a crafted H.323 RAS packet through an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to use an application layer gateway with NAT (NAT ALG) for H.323 RAS messages. By default, a NAT ALG is enabled for H.323 RAS messages. Cisco Bug IDs: CSCvc57217.

Tags

ios cisa edge

CVSS Scores

SSVC Information

Exploitation

active

Automatable

Yes

Technical Impact

partial

Exploit Status

Exploited in the Wild

Yes (2022-03-03 00:00:00 UTC) Source