CVE-2019-3807

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 6.4 MEDIUM

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807	Issue Tracking Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*

Information

Published : 2019-01-29 09:29

Updated : 2019-10-09 16:49

NVD link : CVE-2019-3807

Mitre link : CVE-2019-3807

JSON object : View

CWE

CWE-295

Improper Certificate Validation

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Products Affected

powerdns

recursor

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