SB2021020126 - Authentication bypass in Apache Shiro
Published: February 1, 2021
Security Bulletin ID
SB2021020126
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2020-17523)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: 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:P/U:Amber
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in Apache Shiro with Spring. A remote attacker can send a specially crafted HTTP request to bypass authentication process and gain unauthorized access to the application.
Remediation
Install update from vendor's website.