Vulnerabilities > CVE-2021-27342 - Information Exposure Through Discrepancy vulnerability in Dlink Dir-842E Firmware 3.0.2
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
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
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 2 | |
| Hardware | 1 |
Common Weakness Enumeration (CWE)
References
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.html
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.html
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.py
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.py
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225