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Rewterz Threat Alert – Iranian Campaign Tailored to US Companies Introduces TONEDEAF 2.0

February 3, 2020
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Rewterz Threat Advisory – CVE-2020-3119 – Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution Vulnerability

February 6, 2020

Rewterz Threat Advisory – CVE-2020-3111 – Cisco IP Phone Remote Code Execution and Denial of Service Vulnerability

Severity

High

Analysis Summary

The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition.

Impact

  • Denial of service
  • Remote code execution

Affected Vendors

Cisco

Remediation

Please refer to vendor’s advisory for the list of affected products and upgraded patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-voip-phones-rce-dos

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