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CVE-2021-20400

Quick assessment

Affected
IBM QRadar SIEM
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.

IBM QRadar SIEM是美国IBM公司的一套利用安全智能保护资产和信息远离高级威胁的解决方案。该方案提供对整个IT架构范围进行监督、生成详细的数据访问和用户活动报告等功能。 IBM QRadar存在加密问题漏洞，该漏洞源于服务器使用了较弱的加密算法，攻击者可利用该漏洞解密敏感信息。

AI Predicted 7.5 Difficulty: Easy EPSS 0.66% · P49

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-20400

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196074.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IBM QRadar SIEM加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM QRadar SIEM是美国IBM公司的一套利用安全智能保护资产和信息远离高级威胁的解决方案。该方案提供对整个IT架构范围进行监督、生成详细的数据访问和用户活动报告等功能。 IBM QRadar存在加密问题漏洞，该漏洞源于服务器使用了较弱的加密算法，攻击者可利用该漏洞解密敏感信息。
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
IBM QRadar SIEM 7.3 -

II. Public POCs for CVE-2021-20400

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III. Intelligence Information for CVE-2021-20400

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Vendor Advisories for CVE-2021-20400 (2)

Same Patch Batch · IBM · 2021-12-01 · 4 CVEs total

CVE-2021-29863 IBM QRadar SIEM 代码问题漏洞
CVE-2021-29849 IBM QRadar SIEM 跨站脚本漏洞
CVE-2021-29779 IBM QRadar SIEM 授权问题漏洞

IV. Related Vulnerabilities

Same product: QRadar SIEM
Same vendor: IBM

V. Comments for CVE-2021-20400

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