Insufficient Validation of TSIG Signatures in PowerDNS AXFR Retrieval

CVE-2016-7073 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.

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