# CVE-2016-4437: A Apache Shiro bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Apache Shiro (CVE-2016-4437) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2016-4437. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Apache Shiro contains a vulnerability which may allow remote attackers to execute code or bypass intended access restrictions via an unspecified request parameter when a cipher key has not been configured for the "remember me" feature.

## Sources
- https://nvd.nist.gov/vuln/detail/CVE-2016-4437
- https://nvd.nist.gov/vuln/detail/CVE-2016-4437

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.