SB2021050607 - Weak password hashing in Red Hat Fuse

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Main Vulnerability Database SB2021050607

SB2021050607 - Weak password hashing in Red Hat Fuse

Published: May 6, 2021

Security Bulletin ID SB2021050607
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Comparison using wrong factors (CVE-ID: CVE-2020-28052)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber


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.


Remediation

Install update from vendor's website.

References