Cisco IP Phones Software Arbitrary File Read (CVE-2021-34711)

medium Tenable OT Security Plugin ID 502119

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in the debug shell of Cisco IP Phone software could allow an authenticated, local attacker to read any file on the device file system. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by providing crafted input to a debug shell command. A successful exploit could allow the attacker to read any file on the device file system.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Medium

ID: 502119

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 3/18/2024

Updated: 3/18/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-34711

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ip_phone_7800_series_firmware, cpe:/o:cisco:wireless_ip_phone_8821_firmware, cpe:/o:cisco:ip_phone_8800_series_firmware

Required KB Items: Tenable.ot/Cisco

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2021

Vulnerability Publication Date: 10/6/2021

Reference Information

CVE: CVE-2021-34711

CWE: 22

Detections

Analytics