VulnerabilityModified
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
MEDIUM 5.9EPSS 4.56%
Does this matter?
Lower severity and a low EPSS score (4.56%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 4.56% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- dlink/dir-842e firmware
- Source
- cve@mitre.org
References
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlExploit, Third Party Advisory
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.pyExploit, Third Party Advisory
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225Vendor Advisory
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlExploit, Third Party Advisory
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.pyExploit, Third Party Advisory
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.