PT-2022-20038 · Technitium · Technitium Dns Server

Xiang Li · Published 2022-11-21 · Updated 2022-11-28 · CVE-2022-30257

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Technitium DNS Server versions through 8.0.2

Description An issue was discovered that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Recommendations For Technitium DNS Server versions through 8.0.2, update to a version that addresses this issue to prevent unintended domain name resolution. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-706

Related Identifiers

CVE-2022-30257

Affected Products

Technitium Dns Server

References · 6

• https://osv.dev/vulnerability/CVE-2022-30257 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-30257 · Security Note
• https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-81 · Note
• https://t.me/cvenotify/38174 · Telegram Post
• https://t.me/cvenotify/38583 · Telegram Post
• https://t.me/cibsecurity/53289 · Telegram Post