Improper Authentication in Apache Shiro - CVE-2020-11989

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Main Vulnerability Database Vulnerabilities #VU45756

Improper Authentication in Apache Shiro - CVE-2020-11989

Published: August 18, 2020 / Updated: October 18, 2020


Vulnerability identifier: #VU45756
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-2020-11989
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 in Apache Shiro with Spring dynamic controllers. A remote attacker can bypass authentication process and gain unauthorized access to the application.


Affected software

Apache Shiro
Planning Analytics Local
Ubuntu
libshiro-java (Ubuntu package)

How to mitigate CVE-2020-11989

Install updates from vendor's website.

Apache Shiro - update to 1.5.3
Planning Analytics Local - update to 2.0.1
libshiro-java (Ubuntu package) - addressed in versions 1.3.2-3~18.04.1, 1.3.2-4ubuntu0.1

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins