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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
VendorProductVersion
dlinkdir-842e_firmware
𝑥
≤ 3.0.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225
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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225