CVE-2020-3111
Description
A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. 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. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
35- cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_conference_phone_7832_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_conference_phone_8832_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_6821_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_6841_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_6851_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_6861_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_6871_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_7821_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_7841_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_7861_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:*Range: <12.7\(1\)
- cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:*:*:*:*:*:*:*:*Range: <11.3\(1\)sr1
- cpe:2.3:o:cisco:unified_ip_conference_phone_8831_firmware:*:*:*:*:*:*:*:*Range: <10.3\(1\)sr6
- cpe:2.3:o:cisco:unified_ip_conference_phone_8831_for_third-party_call_control_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wireless_ip_phone_8821-ex_firmware:*:*:*:*:*:*:*:*Range: <11.0\(5\)sr2
- cpe:2.3:o:cisco:wireless_ip_phone_8821_firmware:*:*:*:*:*:*:*:*Range: <11.0\(5\)sr2
(expand)+ 1 more
- (no CPE)
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
2- packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.htmlnvdThird Party AdvisoryVDB Entry
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-voip-phones-rce-dosnvdVendor Advisory
News mentions
0No linked articles in our index yet.