CVE-2019-3978
First published: Mon Oct 28 2019(Updated: )
RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below allow remote unauthenticated attackers to trigger DNS queries via port 8291. The queries are sent from the router to a server of the attacker's choice. The DNS responses are cached by the router, potentially resulting in cache poisoning
Credit: vulnreport@tenable.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MikroTik devices | <=6.44.5 | |
| MikroTik devices | <=6.45.6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-3978?
CVE-2019-3978 is considered a critical vulnerability due to its potential for cache poisoning and remote exploitation.
How do I fix CVE-2019-3978?
To mitigate CVE-2019-3978, upgrade to RouterOS version 6.45.7 or later, where the vulnerability is addressed.
What versions of RouterOS are affected by CVE-2019-3978?
RouterOS versions 6.45.6 and 6.44.5 and earlier are affected by CVE-2019-3978.
What type of attacks can CVE-2019-3978 enable?
CVE-2019-3978 allows remote unauthenticated attackers to trigger DNS queries, which can lead to cache poisoning.
Can CVE-2019-3978 be exploited without authentication?
Yes, CVE-2019-3978 can be exploited by attackers without requiring authentication.
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