Vulnerability identifier: #VU9437
Vulnerability risk: Low
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-300
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PowerDNS Recursor
Server applications /
DNS servers
Vendor: PowerDNS.COM B.V.
Description
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.
Mitigation
Update PowerDNS Recursor to version 4.0.7.
Vulnerable software versions
PowerDNS Recursor: 4.0.0 - 4.0.6
External links
http://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-03.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.