CVE-2022-33989
Published: 15 August 2022
Summary
CVE-2022-33989 is a medium-severity Insufficient Entropy (CWE-331) vulnerability in Dproxy-Nexgen Project Dproxy-Nexgen. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 46.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-37022
Vulnerability details
dproxy-nexgen (aka dproxy nexgen) uses a static UDP source port (selected randomly only at boot time) in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Approved key-establishment methods mandate sufficient entropy during key generation, eliminating entropy-starved keys.