Vulnerability identifier: #VU66542

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-34295

CWE-ID: CWE-330

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
totd
Server applications / DNS servers

Vendor: F.W. Dillema

Description

The vulnerability allows a remote attacker to perform DNS cache poisoning attacks.

The vulnerability exists due to totd does not properly randomize message IDs. A remote attacker can send specially crafted DNS packets to the server and poison the DNS cache.

Mitigation
Install update from vendor's website.

Vulnerable software versions

totd: 1.5.2

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External links
http://www.usenix.org/conference/usenixsecurity22/presentation/jeitner
http://github.com/fwdillema/totd/commit/afd8a10a6a21f82a70940d1b43cff48143250399
http://github.com/fwdillema/totd/releases/tag/1.5.3
http://www.hit.bme.hu/~lencse/publications/JCST-Apr14-2.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.