Vulnerability Monitor

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CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.

Published

2020-05-19T14:15:11.097

Last Modified

2024-11-21T04:59:22.253

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-347

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	powerdns	recursor	≤ 4.3.0	Yes
Operating System	fedoraproject	fedora	31	Yes
Operating System	fedoraproject	fedora	32	Yes
Operating System	debian	debian_linux	10.0	Yes
Application	opensuse	backports_sle	15.0	Yes
Operating System	opensuse	leap	15.1	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/05/19/3 Mailing List, Third Party Advisory ([email protected])
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ ([email protected])
https://www.debian.org/security/2020/dsa-4691 Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/05/19/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4691 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)