CVE-2020-12244 — Improper Verification of Cryptographic Signature in Recursor

CWE-347 — Improper Verification of Cryptographic SignatureCWE-20 — Improper Input Validation8 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 73.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Powerdns RecursorDebian LinuxFedoraproject Fedora+2 more
Timeline
PublishedMay 19
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDpowerdns/recursor4.1.0 — 4.3.0
▶NVDopensuse/leap15.1

Also affects: Debian Linux 10.0, Fedora 31, 32

🔴Vulnerability Details

3
GHSA
GHSA-52f2-92w4-mx97: An issue has been found in PowerDNS Recursor 4↗2022-05-24
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OSV
CVE-2020-12244: An issue has been found in PowerDNS Recursor 4↗2020-05-19
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CVEList
CVE-2020-12244: An issue has been found in PowerDNS Recursor 4↗2020-05-19
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📋Vendor Advisories

1
Debian
CVE-2020-12244: pdns-recursor - An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records i...↗2020
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💬Community

3
Bugzilla
CVE-2020-12244 pdns-recursor: incorrect handling of records in the answer section of a NXDOMAIN response lacking an SOA allows an attacker to bypass DNSSEC validation [epel-all]↗2020-05-26
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Bugzilla
CVE-2020-12244 pdns-recursor: incorrect handling of records in the answer section of a NXDOMAIN response lacking an SOA allows an attacker to bypass DNSSEC validation [fedora-all]↗2020-05-26
▶
Bugzilla
CVE-2020-12244 pdns-recursor: incorrect handling of records in the answer section of a NXDOMAIN response lacking an SOA allows an attacker to bypass DNSSEC validation↗2020-05-26
▶
CVE-2020-12244 — Powerdns Recursor vulnerability | cvebase