CVE-2022-33991 — MEDIUM (5.3)

Vulnerability Description

dproxy-nexgen (aka dproxy nexgen) forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

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-290

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-2022-33991?

CVE-2022-33991 is a vulnerability with a CVSS score of 5.3 (MEDIUM). dproxy-nexgen (aka dproxy nexgen) forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

How severe is CVE-2022-33991?

CVE-2022-33991 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-2022-33991?

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