Improper Authentication in Apache Shiro - CVE-2020-13933
Published: August 18, 2020 / Updated: May 4, 2023
Vulnerability identifier: #VU45757
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-13933
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests. A remote attacker can send a specially crafted HTTP request, bypass authentication process and gain unauthorized access to the application.
Affected software
Apache Shiro
Planning Analytics Local
Ubuntu
libshiro-java (Ubuntu package)
Dell EMC OpenManage Enterprise Services
Fuse
Planning Analytics Local
Ubuntu
libshiro-java (Ubuntu package)
Dell EMC OpenManage Enterprise Services
Fuse
How to mitigate CVE-2020-13933
Install updates from vendor's website.
Apache Shiro - update to 1.6.0
Planning Analytics Local - update to 2.0.1
libshiro-java (Ubuntu package) - addressed in versions Ubuntu Pro, 1.3.2-4ubuntu0.2
Dell EMC OpenManage Enterprise Services - update to 3.5
Fuse - update to 6.3.0
Planning Analytics Local - update to 2.0.1
libshiro-java (Ubuntu package) - addressed in versions Ubuntu Pro, 1.3.2-4ubuntu0.2
Dell EMC OpenManage Enterprise Services - update to 3.5
Fuse - update to 6.3.0
Links to Public Exploits and PoC-codes
- Exploit #9037 - CVE-2020-13933 (CVE-2020-13933 靶场： shiro 认证绕过漏洞) (May 4, 2023)
- Exploit #4800 - cve-2020-13933 (cve-2020-13933 apache shiro权限绕过漏洞) (November 6, 2020)
- Exploit #4648 - cve-2020-13933 (cve-2020-13933 apache shiro权限绕过漏洞) (September 23, 2020)
- Exploit #4585 - CVE-2020-13933 (CVE-2020-13933 靶场： shiro 认证绕过漏洞) (September 11, 2020)