CVE-2020-25829

An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html	Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html	Third Party Advisory
https://security.gentoo.org/glsa/202012-19	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:a:opensuse:backports_sle:15.0:sp1::::::
	cpe:2.3:o:opensuse:leap:15.2:::::::*
	cpe:2.3:a:opensuse:backports_sle:15.0:sp2::::::

Information

Published : 2020-10-15 23:15

Updated : 2022-06-14 20:15

NVD link : CVE-2020-25829

Mitre link : CVE-2020-25829

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

opensuse

backports_sle
leap

powerdns

recursor

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