CVE-2023-28451 Denial of service in n/a
Attackers can cause denial of service in Technitium DNS resolver by forging responses that bypass transaction ID checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-28451?
CVE-2023-28451 is a high-severity denial of service vulnerability in n/a, published on 18 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Technitium 11.0.2. There is a vulnerability (called BadDNS) in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing DoS (denial of service) for normal resolution. The effects of an exploit would be widespread and highly impactful, because the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.
Weakness: CWE-400
Which versions are affected by CVE-2023-28451?
It affects 1 product.
Products include Technitium Dnsserver.
How do I fix CVE-2023-28451?
No fix has been published for CVE-2023-28451 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-28451 being exploited?
There is no known exploitation of CVE-2023-28451 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-3v74-rm67-6782.