#VU26887 Security Features in MSR JavaScript Cryptography Library - CVE-2020-1026

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU26887

#VU26887 Security Features in MSR JavaScript Cryptography Library - CVE-2020-1026

Published: April 14, 2020


Vulnerability identifier: #VU26887
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-1026
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MSR JavaScript Cryptography Library
Software vendor:
Microsoft

Description

This vulnerability allows a local user to bypass security rescritions feature.

The vulnerability exists in the MSR JavaScript Cryptography Library due to multiple bugs in the library’s Elliptic Curve Cryptography (ECC) implementation. A remote attacker can gain information about a server’s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.


Remediation

Install updates from vendor's website.

External links