CVE-2016-7074

Description

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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.

CVSS Metrics

• v3.0•MEDIUM•Score: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
• v3.0•MEDIUM•Score: 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
• v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 1.22%• Percentile: 67%

Techniques & Countermeasures

• CWE-20•Improper Input Validation

  The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

• debian•pdns

  < 4.0.2-1 | < 4.0.2-1 | < 4.0.2-1 | < 4.0.2-1

• debian•pdns-recursor

  < 4.0.4-1 | < 4.0.4-1 | < 4.0.4-1 | < 4.0.4-1

• debian•debian_linux

  8.0

• open-xchange•pdns

  3.4.11 | 4.0.2 | 4.0.4

• powerdns•authoritative

  < 3.4.11 | ≥ 4.0.0, < 4.0.2

• powerdns•recursor

  < 4.0.4

References (4)

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7074
• https://www.debian.org/security/2017/dsa-3764
• https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/
• https://security-tracker.debian.org/tracker/CVE-2016-7074