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CVE-2020-1026

Quick assessment

Affected
Microsoft Microsoft Research JavaScript Cryptography Library V1.4
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.

Microsoft Research JavaScript Cryptography Library是美国微软（Microsoft）公司的一款JavaScript加密库。 Microsoft Research JavaScript Cryptography Library V1.4版本中Elliptic Curve Cryptography的实现存在安全漏洞。攻击者可利用该漏洞获取敏感信息或创建无效的ECDSA签名（会被认定为有效）。

AI Predicted 7.5 Difficulty: Hard EPSS 2.60% · P85

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys
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I. Basic Information for CVE-2020-1026

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka 'MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability'.
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
Microsoft Research JavaScript Cryptography Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Research JavaScript Cryptography Library是美国微软（Microsoft）公司的一款JavaScript加密库。 Microsoft Research JavaScript Cryptography Library V1.4版本中Elliptic Curve Cryptography的实现存在安全漏洞。攻击者可利用该漏洞获取敏感信息或创建无效的ECDSA签名（会被认定为有效）。
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
Microsoft Microsoft Research JavaScript Cryptography Library V1.4 unspecified -

II. Public POCs for CVE-2020-1026

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III. Intelligence Information for CVE-2020-1026

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Vendor Advisories for CVE-2020-1026 (1)

Same Patch Batch · Microsoft · 2020-04-15 · 113 CVEs total

CVE-2020-0977 Microsoft SharePoint 输入验证错误漏洞
CVE-2020-0993 Microsoft Windows DNS 资源管理错误漏洞
CVE-2020-0992 Microsoft Windows Jet Database Engine 缓冲区错误漏洞
CVE-2020-0991 Microsoft Office 缓冲区错误漏洞
CVE-2020-0988 Microsoft Windows Jet Database Engine 缓冲区错误漏洞
CVE-2020-0987 Microsoft Windows 缓冲区错误漏洞
CVE-2020-0985 Microsoft Windows和Windows Server 安全漏洞
CVE-2020-0984 Microsoft AutoUpdate for Mac 安全漏洞
CVE-2020-0983 Microsoft Windows Update Delivery Optimization 安全漏洞
CVE-2020-0982 Microsoft Windows Graphics Component 信息泄露漏洞
CVE-2020-0981 Microsoft Windows和Windows Server 注入漏洞
CVE-2020-0980 Microsoft Word 缓冲区错误漏洞
CVE-2020-0979 Microsoft Excel 缓冲区错误漏洞
CVE-2020-0978 Microsoft SharePoint 跨站脚本漏洞
CVE-2020-0966 Microsoft Internet Explorer VBScript Engine 缓冲区错误漏洞
CVE-2020-0969 Microsoft Edge和ChakraCore 缓冲区错误漏洞
CVE-2020-0968 Microsoft Internet Explorer 缓冲区错误漏洞
CVE-2020-0967 Microsoft Internet Explorer VBScript Engine 缓冲区错误漏洞
CVE-2020-0970 Microsoft ChakraCore和Edge 缓冲区错误漏洞
CVE-2020-0965 Microsoft Windows Codecs Library 缓冲区错误漏洞

Showing top 20 of 113 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Microsoft

V. Comments for CVE-2020-1026

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