CVE Vulnerability

CVE-2021-20133

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).

7.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.1 / Impact : 9.2

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.tenable.com/security/research/tra-2021-44 Exploit Third Party Advisory
Configurations

Configuration 1
Information

Published : 2021-12-30 10:15

Updated : 2022-01-12 08:03

NVD link : CVE-2021-20133

Mitre link : CVE-2021-20133

Products Affected
No products.
CWE
CWE-22