Cisco IP Phones 7800 and 8800 Series Web Management Interface Authentication Bypass (CVE-2023-20018)

medium Tenable OT Security Plugin ID 502086

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in the web-based management interface of Cisco IP Phone 7800 and 8800 Series Phones could allow an unauthenticated, remote attacker to bypass authentication on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to access certain parts of the web interface that would normally require authentication.

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: 502086

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: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2023-20018

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:cisco:wireless_ip_phone_8821-ex_firmware, cpe:/o:cisco:wireless_ip_phone_8821_firmware, cpe:/o:cisco:ip_phone_7800_series_with_multiplatform_firmware, cpe:/o:cisco:ip_phone_8800_series_with_multiplatform_firmware, cpe:/o:cisco:ip_phone_7800_series_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: 1/20/2023

Vulnerability Publication Date: 1/20/2023

Reference Information

CVE: CVE-2023-20018

CWE: 863

Detections

Analytics