CVE Vulnerability

CVE-2021-27342

An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.py Exploit Third Party Advisory
https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.html Exploit Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225 Vendor Advisory
Configurations

Configuration 1
Information

Published : 2021-05-17 01:15

Updated : 2021-05-24 08:14

NVD link : CVE-2021-27342

Mitre link : CVE-2021-27342

Products Affected
No products.
CWE
CWE-203