CVE-2022-33989

CVSS V2 None CVSS V3 Medium 5.3

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.

Overview

CVE ID
CVE-2022-33989

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-08-15T13:15:18

Last Modified Date
2022-08-18T16:53:15

Weakness Enumerations

CWE	URL
CWE-331	http://cwe.mitre.org/data/definitions/331.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-2022-33989
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33989

History

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