Detections
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Cisco IP Phones Web Server RCE and DOS (cisco-sa-20200205-voip-phones-rce-dos)

high Nessus Plugin ID 142018

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Synopsis

The remote IP phone has multiple vulnerabilities.

Description

A denial of service (DoS) vulnerability and remote code execution (RCE) exists in Cisco IP Phones due to missing checks when processing Cisco Discovery Protocol messages. An unauthenticated attacker can 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.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Apply the fix referenced in the vendor's advisory.

See Also

http://www.nessus.org/u?065576a8

Plugin Details

Severity: High

ID: 142018

File Name: cisco-sa-20200205-voip-phones-rce-dos.nasl

Version: 1.5

Type: remote

Family: CISCO

Published: 10/28/2020

Updated: 5/25/2023

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2020-3111

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: x-cpe:/h:cisco:ip_phone, x-cpe:/o:cisco:ip_phone

Required KB Items: installed_sw/Cisco IP Phone

Exploit Ease: No known exploits are available

Patch Publication Date: 2/5/2020

Vulnerability Publication Date: 2/5/2020

Reference Information

CVE: CVE-2020-3111