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.
Weakness
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Recursor | Powerdns | 4.1.0 (including) | 4.1.8 (including) |
| Pdns-recursor | Ubuntu | bionic | * |
| Pdns-recursor | Ubuntu | cosmic | * |
| Pdns-recursor | Ubuntu | trusty | * |
| Pdns-recursor | Ubuntu | upstream | * |
| Pdns-recursor | Ubuntu | xenial | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/111.html
- https://cwe.mitre.org/data/definitions/141.html
- https://cwe.mitre.org/data/definitions/142.html
- https://cwe.mitre.org/data/definitions/148.html
- https://cwe.mitre.org/data/definitions/218.html
- https://cwe.mitre.org/data/definitions/384.html
- https://cwe.mitre.org/data/definitions/385.html
- https://cwe.mitre.org/data/definitions/386.html
- https://cwe.mitre.org/data/definitions/387.html
- https://cwe.mitre.org/data/definitions/388.html
- https://cwe.mitre.org/data/definitions/665.html
- https://cwe.mitre.org/data/definitions/701.html