Condorlab

Cisco – Vulnerability in Cisco IOS XE Software


Advisory IDRSN-SIP-1605

Vulnerability Information

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 SIP packets in transit while NAT is performed on an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted SIP packets via UDP port 5060 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.


Technical Information

An attacker could send crafted SIP packets via UDP port 5060 through an affected device that is performing NAT for SIP packets and allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.


Solutions

The UCTM solution from RedShift Networks provides the industry’s first complete security solution developed to secure VOIP networks, endpoints and applications. His research team Condor-Labs.com is constantly looking for new attack patterns, advanced penetration testing methods, vulnerability identification and deployment of new signatures for constantly subscribed clients. For more information visit www.redshiftnetworks.com


External Resources

Cisco Security Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dos

Common Vulnerabilities and Exposures (CVE)

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0325
http://www.securityfocus.com/bid/104202

SECTRACK:1041734

http://www.securitytracker.com/id/1041734

SECTRACK:1041737

http://www.securitytracker.com/id/1041737