CVE-2021-20133

Published Dec 30, 2021

Last updated 3 years ago

Overview

Description
Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 are affected by an absolute path traversal vulnerability that allows a remote, authenticated attacker to set the "message of the day" banner to any file on the system, allowing them to read all or some of the contents of those files. Such sensitive information as hashed credentials, hardcoded plaintext passwords for other services, configuration files, and private keys can be disclosed in this fashion. Improper handling of filenames that identify virtual resources, such as "/dev/urandom" allows an attacker to effect a denial of service attack against the command line interfaces of the Quagga services (zebra and ripd).
Source
vulnreport@tenable.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
6.1
Impact score
5.2
Exploitability score
0.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
7.1
Impact score
9.2
Exploitability score
5.1
Vector string
AV:A/AC:L/Au:S/C:C/I:N/A:C

Weaknesses

nvd@nist.gov
CWE-22

Social media

Hype score
Not currently trending

Configurations