CVE-2022-30698
NLnet Labs Unbound Child Cache Poisoning
Description
NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information.
INFO
Published Date :
Aug. 1, 2022, 3:15 p.m.
Last Modified :
Nov. 7, 2023, 3:47 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
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-2022-30698.
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-2022-30698 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-30698 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 NLnet Labs https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/ [No types assigned] Added Reference NLnet Labs https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/ [No types assigned] Removed Reference NLnet Labs https://lists.fedoraproject.org/archives/list/[email protected]/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/ Removed Reference NLnet Labs https://lists.fedoraproject.org/archives/list/[email protected]/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/ -
CVE Modified by [email protected]
Mar. 29, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html [No Types Assigned] -
Modified Analysis by [email protected]
Feb. 23, 2023
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202212-02 No Types Assigned https://security.gentoo.org/glsa/202212-02 Third Party Advisory -
CVE Modified by [email protected]
Dec. 19, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202212-02 [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 29, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 25, 2022
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/ [No Types Assigned] -
CVE Modified by [email protected]
Aug. 12, 2022
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 08, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt No Types Assigned https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt Vendor Advisory Added CWE NIST CWE-613 Added CPE Configuration OR *cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* versions up to (excluding) 1.16.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-30698 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-2022-30698
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} -0.02%
score
0.45342
percentile