CVE-2021-38425

eProsima Fast DDS Network Amplification

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

eProsima Fast DDS versions prior to 2.4.0 (#2269) are susceptible to exploitation when an attacker sends a specially crafted packet to flood a target device with unwanted traffic, which may result in a denial-of-service condition and information exposure.

eProsima Fast DDS versiones anteriores a 2.4.0 (#2269), son susceptibles de ser explotadas cuando un atacante envía un paquete especialmente diseñado para inundar un dispositivo de destino con tráfico no deseado, lo que puede resultar en una condición de denegación de servicio y exposición de información

*Credits: Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), Víctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-10 CVE Reserved
2022-05-05 CVE Published
2023-11-26 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-406: Insufficient Control of Network Message Volume (Network Amplification)

CAPEC

References (2)

URL	Tag	Source
https://github.com/eProsima/Fast-DDS	Product
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02	Third Party Advisory

URL	Date	SRC

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
Eprosima Search vendor "Eprosima"		Fast Dds Search vendor "Eprosima" for product "Fast Dds"				< 2.4.0 Search vendor "Eprosima" for product "Fast Dds" and version " < 2.4.0"		-		Affected