CVE-2020-10995
PowerDNS Recursor DNS Amplification Vulnerability
Description
PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue.
INFO
Published Date :
May 19, 2020, 5:15 p.m.
Last Modified :
Nov. 7, 2023, 3:14 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-2020-10995
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-2020-10995.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html | Mailing List Third Party Advisory |
| http://www.nxnsattack.com | Technical Description Third Party Advisory |
| https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-01.html | Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ | |
| https://www.debian.org/security/2020/dsa-4691 | 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-2020-10995 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-10995 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html Mailing List, Third Party Advisory Changed Reference Type http://www.nxnsattack.com Technical Description http://www.nxnsattack.com Technical Description, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4691 No Types Assigned https://www.debian.org/security/2020/dsa-4691 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-674 CWE-400 -
CVE Modified by [email protected]
Jun. 14, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ [No Types Assigned] -
CVE Modified by [email protected]
May. 26, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4691 [No Types Assigned] -
CVE Modified by [email protected]
May. 23, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html [No Types Assigned] -
Initial Analysis by [email protected]
May. 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://www.nxnsattack.com No Types Assigned http://www.nxnsattack.com Technical Description Changed Reference Type https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-01.html No Types Assigned https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-01.html Vendor Advisory Added CWE NIST CWE-674 Added CPE Configuration OR *cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (including) 4.3.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-10995 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-2020-10995
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.78 }} -0.33%
score
0.81775
percentile