CVE-2022-33989

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

dproxy-nexgen (también se conoce como dproxy nexgen) usa un puerto de origen UDP estático (seleccionado aleatoriamente sólo en el momento del arranque) en las consultas ascendentes enviadas a resolvedores de DNS. Esto permite el envenenamiento de la caché de DNS porque no se presenta suficiente entropía para evitar los ataques de inyección de tráfico.

*Credits: N/A

CVSS Scores

NISTv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-18 CVE Reserved
2022-08-15 CVE Published
2024-03-07 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-331: Insufficient Entropy

CAPEC

References (3)

URL	Tag	Source
https://sourceforge.net/projects/dproxy	Third Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner	Third Party Advisory

URL	Date	SRC
https://www.openwall.com/lists/oss-security/2022/08/14/3	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dproxy-nexgen Project Search vendor "Dproxy-nexgen Project"		Dproxy-nexgen Search vendor "Dproxy-nexgen Project" for product "Dproxy-nexgen"				-		-		Affected