Vulnerability Monitor

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CVE-2019-12646

A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP packets on which NAT is performed on an affected device. An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Published

2019-09-25T20:15:10.353

Last Modified

2024-11-21T04:23:15.173

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-399
  • Type: Primary
    CWE-665
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 15.4\(3\)s Yes
Operating System cisco ios_xe 15.5\(3\)s Yes
Operating System cisco ios_xe 15.6\(1\)s Yes
Operating System cisco ios_xe 16.3.1 Yes
Operating System cisco ios_xe 16.4.1 Yes
Operating System cisco ios_xe 16.5.1 Yes
Operating System cisco ios_xe 16.6.1 Yes
Operating System cisco ios_xe 16.7.1 Yes
Operating System cisco ios_xe 16.8.1 Yes
Operating System cisco ios_xe 16.9.1 Yes
Operating System cisco ios_xe 16.10.1 Yes
Operating System cisco ios_xe 16.11.1 Yes
Operating System cisco ios_xe 16.12.1 Yes
Hardware cisco 1100-4p - No
Hardware cisco 1100-8p - No
Hardware cisco 1101-4p - No
Hardware cisco 1109-2p - No
Hardware cisco 1109-4p - No
Hardware cisco 1111x-8p - No
Hardware cisco 4221_integrated_services_router - No
Hardware cisco 4331_integrated_services_router - No
Hardware cisco csr_1000v - No
Hardware cisco encs_5100 - No
Hardware cisco encs_5400 - No
Hardware cisco isrv - No
References