CVE-2022-30258

An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V2 of unintended domain name resolution

Critical · published November 21, 2022

CVSS v3.1
9.8
EPSS
1%
Percentile
53.4
In the wild
Unconfirmed
What it is

🚨 A revoked domain can still be accessed for a long time! The Technitium DNS Server issue allows expired or malicious domains to resolve as if they’re still active, making your network vulnerable. 🔥 Think of this like a restaurant that doesn't bother taking down its 'Closed' sign even after it shut down; customers might still show up, hoping for the same great meal they once had. In the digital world, this means users can still reach dangerous or abandoned domains that should no longer exist! The implications could be absolutely devastating! An attacker could exploit this flaw to redirect users to malicious content or phishing sites, resulting in data breaches, financial loss, and a tarnished reputation for any affected organization. With attackers able to leverage these 'ghost' domains, the risk is widespread and highly impactful!

Put simply

Think of this like a restaurant that doesn't bother taking down its 'Closed' sign even after it shut down; customers might still show up, hoping for the same great meal they once had. In the digital world, this means users can still reach dangerous or abandoned domains that should no longer exist! This vulnerability allows for unintended domain name resolution in Technitium DNS Server versions up to 8.0.2. Even revoked or expired domains can be resolved, bypassing typical mitigation strategies.

What to do

The implications could be absolutely devastating! An attacker could exploit this flaw to redirect users to malicious content or phishing sites, resulting in data breaches, financial loss, and a tarnished reputation for any affected organization. With attackers able to leverage these 'ghost' domains, the risk is widespread and highly impactful! To mitigate this flaw, update Technitium DNS Server to version 8.0.3 or later immediately. Additionally, review DNS configurations and implement additional monitoring on domain resolutions to catch any anomalies. Don't let those ghost domains haunt your network! You've got this! By staying proactive and updating your systems, you’re one step closer to securing your network! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00722 · 53.4th percentile
Published
2022-11-21T00:00Z
EPSS history
Timeline
  • 21 NOV 00:00Z
    An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V2 of unintended domain name resolution
    cvelistv5