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.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is in the KEV database since March 3, 2022.
Exploitation active
Automatable yes
Technical Impact partial
Affected Vendors & Products
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Cisco |
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Configuration 1 [-]
AND |
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No data.
References
History
Fri, 15 Nov 2024 18:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
kev
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2017-09-28T07:00:00
Updated: 2024-11-15T17:58:19.069Z
Reserved: 2017-08-03T00:00:00
Link: CVE-2017-12231
Vulnrichment
Updated: 2024-08-05T18:28:16.883Z
NVD
Status : Modified
Published: 2017-09-29T01:34:48.747
Modified: 2024-11-21T03:09:05.157
Link: CVE-2017-12231
Redhat
No data.