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Vulnerability Details :

CVE-2020-1026

Summary
Assigner-microsoft
Assigner Org ID-f38d906d-7342-40ea-92c1-6c4a2c6478c8
Published At-15 Apr, 2020 | 15:13
Updated At-04 Aug, 2024 | 06:25
Rejected At-
Credits

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'.

Vendors
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Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:microsoft
Assigner Org ID:f38d906d-7342-40ea-92c1-6c4a2c6478c8
Published At:15 Apr, 2020 | 15:13
Updated At:04 Aug, 2024 | 06:25
Rejected At:
▼CVE Numbering Authority (CNA)

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'.

Affected Products
Vendor
Microsoft CorporationMicrosoft
Product
Microsoft Research JavaScript Cryptography Library V1.4
Versions
Affected
  • unspecified
Problem Types
TypeCWE IDDescription
textN/ASecurity Feature Bypass
Type: text
CWE ID: N/A
Description: Security Feature Bypass
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026
x_refsource_MISC
Hyperlink: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026
x_refsource_MISC
x_transferred
Hyperlink: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:secure@microsoft.com
Published At:15 Apr, 2020 | 15:15
Updated At:21 Jul, 2021 | 11:39

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'.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

Microsoft Corporation
microsoft
>>research_javascript_cryptography_library>>1.4
cpe:2.3:a:microsoft:research_javascript_cryptography_library:1.4:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-200Primarynvd@nist.gov
CWE-347Primarynvd@nist.gov
CWE ID: CWE-200
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-347
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026secure@microsoft.com
Patch
Vendor Advisory
Hyperlink: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026
Source: secure@microsoft.com
Resource:
Patch
Vendor Advisory

Change History

0
Information is not available yet

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