CVE-2021-27342: Medium severity d-link dir-842e firmware vulnerability
Published May 17, 2021
·Updated
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
Affected Software
2 affected components
Dlink Dir-842e Firmware<=3.0.2
Dlink Dir-842e=r1
Event History
May 17, 2021
CVE Published
via MITRE·12:20 PM
Data Sourced
via MITRE·12:20 PM
Description
Frequently Asked Questions
1
What is the severity of CVE-2021-27342?
CVE-2021-27342 has a medium severity rating due to its potential for remote exploitation.
2
How do I fix CVE-2021-27342?
To mitigate CVE-2021-27342, update the D-Link DIR-842 firmware to version 3.0.3 or later.
3
What effects does CVE-2021-27342 have on my D-Link router?
CVE-2021-27342 allows a remote attacker to bypass authentication brute-force protection mechanisms on affected D-Link routers.
4
Which D-Link router models are affected by CVE-2021-27342?
CVE-2021-27342 specifically affects the D-Link DIR-842 with firmware version up to 3.0.2.
5
Can CVE-2021-27342 be exploited without physical access to the router?
Yes, CVE-2021-27342 can be exploited remotely without needing physical access to the D-Link router.