CVE-2019-3979
Last modified
CVE-2019-3979 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below are vulnerable to a DNS unrelated data attack. The router adds all A records to its DNS cache even when the records are unrelated to the domain that was queried. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below are vulnerable to a DNS unrelated data attack. The router adds all A records to its DNS cache even when the records are unrelated to the domain that was queried. Therefore, a remote attacker controlled DNS server can poison the router's DNS cache via malicious responses with additional and untrue records.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mikrotik | Routeros | <= 6.44.5 |
| Mikrotik | Routeros | <= 6.45.6 |
References
- https://www.tenable.com/security/research/tra-2019-46Third Party Advisory
- https://www.tenable.com/security/research/tra-2019-46Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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