CVE-2020-3161

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. 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 DoS condition.
Overview
  • CVE ID
  • CVE-2020-3161
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-15T20:15:15
  • Last Modified Date
  • 2021-08-12T18:19:39
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:ip_phone_8865_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8865_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8865_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8851_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8851_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8851_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_7841_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_7821_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8811_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8811_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8811_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8861_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8861_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8861_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8845_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8845_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8845_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_7861_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8841_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8841_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8841_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_7811_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8821_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8821:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:ip_phone_8821-ex_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8821-ex_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ip_phone_8821-ex_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ip_phone_8821-ex:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:8831_firmware:10.3\(1\)es14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:8831_firmware:11.0\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:8831_firmware:11.0\(5\)sr1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:8831:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voip-phones-rce-dos-rB6EeRXs Vendor Advisory
http://packetstormsecurity.com/files/157265/Cisco-IP-Phone-11.7-Denial-Of-Service.html Exploit Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-3161
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3161
History
Created Old Value New Value Data Type Notes
2022-05-10 06:57:28 Added to TrackCVE
2022-12-04 14:56:27 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-04 14:56:27 2020-04-15T20:15Z 2020-04-15T20:15:15 CVE Published Date updated
2022-12-04 14:56:27 2021-08-12T18:19:39 CVE Modified Date updated
2022-12-04 14:56:27 Analyzed Vulnerability Status updated