Main Vulnerability Database Vulnerabilities #VU51249

Use of insufficiently random values in yapi - CVE-2021-27884

Published: March 8, 2021

Vulnerability identifier: #VU51249

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-27884

CWE-ID: CWE-330

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: YMFE

Affected software:
yapi

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to weak JSON Web Token (JWT) signing secret generation. A remote attacker can recreate the other users' JWT tokens.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.