Condorlab

Cisco – Vulnerability in Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software


Advisory IDRSN-SIP-1652


Vulnerability Information

A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition.


Technical Information

The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service 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

https://kb.juniper.net/JSA10953https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-sip-alg.htmlhttps://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-sip-alg.html

Common Vulnerabilities and Exposures (CVE)

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3226