What is CVE-2016-4437?

CVE-2016-4437 is a critical-severity vulnerability in Apache Aurora, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2016-06-07.

How severe is CVE-2016-4437?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-4437 known to be exploited?

Yes. CVE-2016-4437 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 79 public proof-of-concept repositories are indexed.

Vulnerability in Apache Aurora

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.

EPSS: 0.930 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Aurora
Apache Shiro
Redhat Fuse — versions 1.0
Redhat Jboss_middleware_text-only_advisories — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-321 — Use of Hard-coded Cryptographic Key

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List)
secalert@redhat.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ, VDB Entry, Third Party Advisory, Broken Link)
secalert@redhat.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2016-4437?: CVE-2016-4437 is a critical-severity vulnerability in Apache Aurora, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2016-06-07.
How severe is CVE-2016-4437?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-4437 known to be exploited?: Yes. CVE-2016-4437 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 79 public proof-of-concept repositories are indexed.