Vulnerability Description
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
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dlink | Dir-842E Firmware | <= 3.0.2 |
| Dlink | Dir-842E | r1 |
Related Weaknesses (CWE)
References
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlExploitThird Party Advisory
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telExploitThird Party Advisory
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP1Vendor Advisory
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlExploitThird Party Advisory
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telExploitThird Party Advisory
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP1Vendor Advisory
FAQ
What is CVE-2021-27342?
CVE-2021-27342 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 p...
How severe is CVE-2021-27342?
CVE-2021-27342 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-27342?
Check the references section above for vendor advisories and patch information. Affected products include: Dlink Dir-842E Firmware, Dlink Dir-842E.