- Vulnerabilities 88,289
Unbound DNS Resolver Denial of Service Vulnerability
Published: 2018-01-24 14:09:10
CVE Author: NIST National Vulnerability Database
CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:N
Detection Type:
Remote Banner Unreliable
Solution Type:
Vendor Patch
Summary:
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
Detection Method:
The script checks if a vulnerable version is present on the target host.
Affected Versions:
Unbound DNS Resolver before version 1.6.8
Recommendations:
Update to version 1.6.8 or above
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