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

Configuration 1 (hide)

AND
cpe:2.3:o:dlink:dir-2640-us_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*

History

12 Jan 2022, 20:03

Type Values Removed Values Added
CVSS v2 : 7.5
v3 : 6.5
v2 : 7.1
v3 : 6.1

12 Jan 2022, 18:13

Type Values Removed Values Added
References (MISC) https://www.tenable.com/security/research/tra-2021-44 - (MISC) https://www.tenable.com/security/research/tra-2021-44 - Exploit, Third Party Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 7.5
v3 : 6.5
First Time Dlink
Dlink dir-2640-us
Dlink dir-2640-us Firmware
CPE cpe:2.3:o:dlink:dir-2640-us_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*
CWE CWE-22

30 Dec 2021, 22:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-12-30 22:15

Updated : 2023-12-10 14:09


NVD link : CVE-2021-20133

Mitre link : CVE-2021-20133

CVE.ORG link : CVE-2021-20133


JSON object : View

Products Affected

dlink

  • dir-2640-us_firmware
  • dir-2640-us
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')