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CVE-2021-3678— Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in star7th/showdoc

Quick assessment

Affected
star7th star7th/showdoc
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.

showdoc是开源的一个非常适合IT团队在线共享文档的工具。 showdoc 中存在安全特征问题漏洞，该漏洞源于缺少对客户端登录次数限制从而导致易受密码弱伪随机数生成器(PRNG)攻击。

AI Predicted 5.3 Difficulty: Trivial EPSS 1.06% · P64

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2021-3678

Vulnerability Information
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Vulnerability Title
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in star7th/showdoc
Source: CVE Program / CVE List V5
Vulnerability Description
showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
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
showdoc 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
showdoc是开源的一个非常适合IT团队在线共享文档的工具。 showdoc 中存在安全特征问题漏洞，该漏洞源于缺少对客户端登录次数限制从而导致易受密码弱伪随机数生成器(PRNG)攻击。
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
star7th star7th/showdoc unspecified ~ 2.9.7 -

II. Public POCs for CVE-2021-3678

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-3678

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Patches & Fixes for CVE-2021-3678 (1)

Vendor Advisories for CVE-2021-3678 (1)

IV. Related Vulnerabilities

Same product: star7th/showdoc
Same vendor: star7th
Same weakness: CWE-338

V. Comments for CVE-2021-3678

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