CVE-2022-34294

Public Exploit

Description

totd 1.5.3 uses a fixed UDP source port in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.17%
Third-Party Advisory github.com Third-Party Advisory blackhat.com Third-Party Advisory openwall.com Third-Party Advisory usenix.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner third party advisory technical description
https://github.com/fwdillema/totd third party advisory
https://www.blackhat.com/presentations/bh-jp-08/bh-jp-08-Kaminsky/BlackHat-Japan-08-Kaminsky-DNS08-BlackOps.pdf third party advisory
https://www.openwall.com/lists/oss-security/2022/08/14/2 mailing list exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-34294?
CVE-2022-34294 has been scored as a critical severity vulnerability.
How to fix CVE-2022-34294?
To fix CVE-2022-34294, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-34294 being actively exploited in the wild?
It is possible that CVE-2022-34294 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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