CVE-2021-27342
First published: Mon 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
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TP-Link WR842ND | <=3.0.2 | |
| Dlink DIR-842E Firmware | =r1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-27342?
CVE-2021-27342 has a medium severity rating due to its potential for remote exploitation.
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.
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.
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.
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.
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- canonical/tp-link wr842nd
- version/tp-link wr842nd/3.0.2
- canonical/dlink dir-842e firmware
- version/dlink dir-842e firmware/r1