Man-in-the-middle attack in PowerDNS Recursor - CVE-2017-15090

Vulnerability identifier: #VU9437

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-15090

CWE-ID: CWE-300

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to conduct man-in-the-middle attack.

The weakness exists due to improper validation of DNSSEC component of PowerDNS Recursor. A remote attacker can use man-in-the-middle technique, issue a valid signature for the crafted records and alter the content of records.

PowerDNS Recursor
Arch Linux
Fedora
pdns-recursor (Alpine package)
pdns-recursor

Update PowerDNS Recursor to version 4.0.7.

pdns-recursor (Alpine package) - update to 4.0.7-r0
pdns-recursor - addressed in versions 4.0.7-1.fc25, 4.0.7-1.fc26, 4.0.7-1.fc27, 4.1.3-2.el7, 4.1.3-2.fc27

• https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-03.html

• Multiple vulnerabilities in PowerDNS Recursor and Authoritative
• Arch Linux update for powerdns-recursor
• Man-in-the-middle attack in pdns-recursor (Alpine package)
• Fedora 26 update for pdns-recursor
• Fedora 27 update for pdns-recursor
• Fedora 25 update for pdns-recursor
• Fedora 27 update for pdns-recursor
• Fedora EPEL 7 update for pdns-recursor