CVE-2022-33989 — MEDIUM (5.3)

Vulnerability 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.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Dproxy-Nexgen Project	Dproxy-Nexgen	-

Related Weaknesses (CWE)

CWE-331

References

https://sourceforge.net/projects/dproxy/Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/3ExploitMailing ListThird Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerThird Party Advisory
https://sourceforge.net/projects/dproxy/Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/3ExploitMailing ListThird Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerThird Party Advisory

FAQ

What is CVE-2022-33989?

CVE-2022-33989 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 en...

How severe is CVE-2022-33989?

CVE-2022-33989 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-33989?

Check the references section above for vendor advisories and patch information. Affected products include: Dproxy-Nexgen Project Dproxy-Nexgen.