CVEvulnerability
CVE-2022-33989
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-08-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-331
Description
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.
Affected configurations
• dproxy-nexgen project dproxy-nexgen
Related
Weakness · CWE (1)
- CWE-331 Insufficient Entropy weakness
References
- https://sourceforge.net/projects/dproxy/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/08/14/3 Exploit, Mailing List, Third Party Advisory
- https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner Third Party Advisory
- https://sourceforge.net/projects/dproxy/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/08/14/3 Exploit, Mailing List, Third Party Advisory
- https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner Third Party Advisory