Improper Verification of Cryptographic Signature Affecting pdns-recursor package, versions <4.0.7-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE310-PDNSRECURSOR-454047
- published23 Jan 2018
- disclosed23 Jan 2018
Introduced: 23 Jan 2018
CVE-2017-15090 (opens in a new tab)How to fix?
Upgrade Alpine:3.10 pdns-recursor to version 4.0.7-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pdns-recursor package and not the pdns-recursor package as distributed by Alpine.
See How to fix? for Alpine:3.10 relevant fixed versions and status.
An issue has been found in the DNSSEC validation component of PowerDNS Recursor from 4.0.0 and up to and including 4.0.6, where the signatures might have been accepted as valid even if the signed data was not in bailiwick of the DNSKEY used to sign it. This allows an attacker in position of man-in-the-middle to alter the content of records by issuing a valid signature for the crafted records.
References
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-03.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15090
- https://security-tracker.debian.org/tracker/CVE-2017-15090
- http://www.securityfocus.com/bid/101982
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-15090