Weak password hashing in Red Hat Fuse

Published: 2021-05-06
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-28052
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Server applications / Application servers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Comparison using wrong factors

EUVDB-ID: #VU49086

Risk: High


CVE-ID: CVE-2020-28052

CWE-ID: CWE-1025 - Comparison using wrong factors

Exploit availability: Yes


The vulnerability allows a remote attacker to brute-force password hashes.

The vulnerability exists due to comparison error in OpenBSDBCrypt.checkPassword() function in core/src/main/java/org/bouncycastle/crypto/generators/OpenBSDBCrypt.java when matching passwords with hashes. A remote attacker can pass an incorrect password that will be accepted as a valid one by the library, bypass authentication process and gain unauthorized access to the application that uses vulnerable version of Bouncy Castle.


Install updates from vendor's website.

Vulnerable software versions

Fuse: 7.8.0

CPE2.3 External links


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?