PT-2022-20039 · Technitium · Technitium Dns Server

Xiang Li · Published 2022-11-21 · Updated 2022-11-28 · CVE-2022-30258

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 8.0.2 and earlier

Description An issue was discovered that allows variant V2 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 8.0.2 and earlier, update to a version later than 8.0.2 to resolve the issue. 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-2022-30258

Affected Products

Technitium Dns Server

References · 6

• https://osv.dev/vulnerability/CVE-2022-30258 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-30258 · Security Note
• https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-81 · Note
• https://t.me/cvenotify/38582 · Telegram Post
• https://t.me/cvenotify/38173 · Telegram Post
• https://t.me/cibsecurity/53290 · Telegram Post