Security restrictions bypass in PowerDNS Recursor - CVE-2019-3806
Published: February 1, 2019
Vulnerability identifier: #VU17347
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-3806
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PowerDNS.COM B.V.
Affected software:
PowerDNS Recursor
PowerDNS Recursor
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to Lua hooks are not properly applied to queries received over TCP in some specific combination of settings. A remote attacker can bypass security policies enforced using Lua.
How to mitigate CVE-2019-3806
Update to version 4.1.9.