CVE-2022-33991

CVSS V2 None CVSS V3 Medium 5.3

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.

Overview

CVE ID
CVE-2022-33991

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-08-15T13:15:19

Last Modified Date
2022-08-18T16:46:11

Weakness Enumerations

CWE	URL
CWE-290	http://cwe.mitre.org/data/definitions/290.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:dproxy-nexgen_project:dproxy-nexgen:-:::::::*	1	OR

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
5.3

Base Severity
MEDIUM

Exploitability Score
3.9

Impact Score
1.4

References

Reference URL	Reference Tags
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner
https://sourceforge.net/projects/dproxy/
https://www.openwall.com/lists/oss-security/2022/08/14/3

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-33991
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33991

History

Created	Old Value	New Value	Data Type	Notes
2022-08-15 14:00:08				Added to TrackCVE