CVE-2016-4437
100Vexday Risk Score
Patch now. It under exploitation confirmed by CISA and has a working public exploit.
ssvc Actcvss 9.8epss 93%
from disclosure to weapon1424 days
Published on NVDJun 7
1st PoC+1424d
metasploitJun 7
CISA KEV+1975d
exploitation probability
93%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
13 public exploit(s)
Action required by CISAfederal deadline: 2022-05-03
Apply updates per vendor instructions.
Researched and written with AI from the vendor advisory and public analysis, with the sources above. Always confirm the fixed version in the official advisory before acting.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · n/apublic PoCs found — 13✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/48410githubgithub.com/bkfish/Awesome_shiro★ 55githubgithub.com/4nth0ny1130/shisoserial★ 24githubgithub.com/pizza-power/CVE-2016-4437★ 2githubgithub.com/35789-gh/cve-2016-4437★ 1githubgithub.com/m3terpreter/CVE-2016-4437★ 0githubgithub.com/xk-mt/CVE-2016-4437★ 0vulncheckvulncheck.com/xdb/c53d22555992unverifiedcve_referencepacketstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.htmlunverifiedvulncheckvulncheck.com/xdb/67abb858193dunverifiedvulncheckvulncheck.com/xdb/6535af761e5cunverifiedvulncheckvulncheck.com/xdb/d7a43fa66a9eunverifiedcve_referencepacketstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://packetstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.htmlhttp://packetstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.htmlhttp://rhn.redhat.com/errata/RHSA-2016-2035.htmlhttp://rhn.redhat.com/errata/RHSA-2016-2036.htmlhttps://lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4%40%3Cannouncements.aurora.apache.org%3Ehttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4437http://www.securityfocus.com/archive/1/538570/100/0/threadedhttp://www.securityfocus.com/bid/91024