# CVE-2016-4437

Apache Shiro before 1.2.5, when a cipher key has not been configured for the "remember me" feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.

- Page: https://www.vulneraibility.com/cve/CVE-2016-4437
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2021-11-03; CISA due date 2022-05-03
- EPSS: 93.04% (percentile 99.8)
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 7 GitHub proofs of concept · 1 Nuclei template (first 2020-05-01)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-02-07)
- Weakness: CWE-321
- Published: 2016-06-07

## Affected

- apache:aurora
- apache:shiro
- redhat:fuse
- redhat:jboss_middleware_text-only_advisories

## References

- [advisory] http://rhn.redhat.com/errata/RHSA-2016-2035.html
- [other] https://lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4%40%3Cannouncements.aurora.apache.org%3E
- [other] http://packetstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.html
- [advisory] http://rhn.redhat.com/errata/RHSA-2016-2036.html
- [other] http://www.securityfocus.com/bid/91024
- [other] http://www.securityfocus.com/archive/1/538570/100/0/threaded
- [other] http://packetstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4437

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.