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cve[email protected]CVE-2019-3979
HistoryOct 29, 2019 - 7:15 p.m.

CVE-2019-3979

2019-10-2919:15:20
CWE-345
web.nvd.nist.gov
51
routeros
dns
cache poisoning
vulnerability
cve-2019-3979
nvd

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.5

Confidence

High

EPSS

0.002

Percentile

54.9%

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.

Affected configurations

NVD
Node
mikrotikrouterosRange≀6.44.5ltr
OR
mikrotikrouterosRange≀6.45.6-
VendorProductVersionCPE
mikrotikrouteroscpe:/o:mikrotik:routeros:::-:
mikrotikrouteroscpe:/o:mikrotik:routeros:::ltr:

CNA Affected

[
  {
    "product": "MikroTik RouterOS",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "RouterOS 6.45.6 Stable and below. RouterOS 6.44.5 Long-term and below."
      }
    ]
  }
]

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.5

Confidence

High

EPSS

0.002

Percentile

54.9%

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