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

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

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

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-842e_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-842e:r1:*:*:*:*:*:*:*

Information

Published : 2021-05-17 06:15

Updated : 2021-05-24 13:14

NVD link : CVE-2021-27342

Mitre link : CVE-2021-27342

JSON object : View

CWE

CWE-203

Observable Discrepancy

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Products Affected

dlink

dir-842e_firmware
dir-842e

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