CVE Vulnerability

CVE-2018-14663

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2018-08.html Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14663 Issue Tracking Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*
Information

Published : 2018-11-26 11:29

Updated : 2019-10-09 11:35

NVD link : CVE-2018-14663

Mitre link : CVE-2018-14663

Products Affected
No products.
CWE
CWE-20