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CVE-2021-34430

Quick assessment

Affected
The Eclipse Foundation Eclipse TinyDTLS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse TinyDTLS是一个用于数据报传输层安全 (DTLS) 的库。 Eclipse TinyDTLS 存在加密问题漏洞，该漏洞源于Eclipse TinyDTLS通过0.9-rc1依赖于C库中的rand函数。攻击者可利用该漏洞更容易计算出密钥，然后解密DTLS通信。

AI Predicted 7.5 Difficulty: Easy EPSS 1.04% · P63

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2021-34430

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse TinyDTLS 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse TinyDTLS是一个用于数据报传输层安全 (DTLS) 的库。 Eclipse TinyDTLS 存在加密问题漏洞，该漏洞源于Eclipse TinyDTLS通过0.9-rc1依赖于C库中的rand函数。攻击者可利用该漏洞更容易计算出密钥，然后解密DTLS通信。
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
The Eclipse Foundation Eclipse TinyDTLS unspecified ~ 0.9-rc1 -

II. Public POCs for CVE-2021-34430

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III. Intelligence Information for CVE-2021-34430

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Other References for CVE-2021-34430 (1)

IV. Related Vulnerabilities

Same product: Eclipse TinyDTLS
Same vendor: The Eclipse Foundation
Same weakness: CWE-338

V. Comments for CVE-2021-34430

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