CVE-2022-34294

2022-08-1511:53:52

mitre

www.cve.org

totd 1.5.3

vulnerability

fixed udp source port

dns cache poisoning

AI Score

9.7

Confidence

High

EPSS

0.014

Percentile

86.5%

JSON

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.

References

github.com/fwdillema/totd

www.blackhat.com/presentations/bh-jp-08/bh-jp-08-Kaminsky/BlackHat-Japan-08-Kaminsky-DNS08-BlackOps.pdf

www.openwall.com/lists/oss-security/2022/08/14/2

www.usenix.org/conference/usenixsecurity22/presentation/jeitner