#VU89622 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in BTCPay Server - CVE-2021-29245
Published: May 17, 2024
Vulnerability identifier: #VU89622
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-29245
CWE-ID: CWE-338
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
BTCPay Server
BTCPay Server
Software vendor:
BTCPay
BTCPay
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to BTCPay Server uses a weak method Next to produce pseudo-random values to generate a legacy API key. A remote attacker can gain unauthorized access to sensitive information on the system.
Remediation
Install updates from vendor's website.