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CVE-2021-38425— eProsima Fast DDS Network Amplification

Quick assessment

Affected
eProsima Fast DDS
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

eProsima Fast RTPS是一款RTPS（实时发布订阅）协议的C++实现。 eProsima Fast RTPS 中存在安全漏洞，该漏洞源于产品未对输入的特殊数据做有效处理。攻击者可通过该漏洞导致拒绝服务以及信息泄露。以下产品及版本受到影响：eProsima Fast DDS 2.4.0 之前版本。

CVSS 7.5 · High EPSS 5.09% · P92
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I. Basic Information for CVE-2021-38425

Vulnerability Information
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Vulnerability Title
eProsima Fast DDS Network Amplification
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对网络消息容量的控制不充分(网络放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
eProsima Fast RTPS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
eProsima Fast RTPS是一款RTPS（实时发布订阅）协议的C++实现。 eProsima Fast RTPS 中存在安全漏洞，该漏洞源于产品未对输入的特殊数据做有效处理。攻击者可通过该漏洞导致拒绝服务以及信息泄露。以下产品及版本受到影响：eProsima Fast DDS 2.4.0 之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
eProsima Fast DDS unspecified ~ 2.4.0 (#2269) -

II. Public POCs for CVE-2021-38425

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III. Intelligence Information for CVE-2021-38425

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Vendor Advisories for CVE-2021-38425 (1)

Other References for CVE-2021-38425 (1)

IV. Related Vulnerabilities

Same vendor: eProsima
Same weakness: CWE-406

V. Comments for CVE-2021-38425

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