CVE-2020-25829
PowerDNS Recursor Bogus DNSSEC Validation State Denial of Service Vulnerability
Description
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).
INFO
Published Date :
Oct. 16, 2020, 6:15 a.m.
Last Modified :
June 15, 2022, 3:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-25829
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-25829.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html | Third Party Advisory |
| https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html | Vendor Advisory |
| https://security.gentoo.org/glsa/202012-19 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-25829 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-25829 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jun. 15, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202012-19 No Types Assigned https://security.gentoo.org/glsa/202012-19 Third Party Advisory -
CVE Modified by [email protected]
Dec. 23, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202012-19 [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 21, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html Third Party Advisory Changed Reference Type https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html No Types Assigned https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.18 *cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.2.5 *cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.3.5 Added CPE Configuration OR *cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* *cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 17, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-25829 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-25829
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.38 }} -0.05%
score
0.73401
percentile