What is CVE-2016-5431?

CVE-2016-5431 is a high-severity vulnerability in Php Jose Project, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2019-08-07.

How severe is CVE-2016-5431?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2016-5431 known to be exploited?

12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Php Jose Project

CVE-2016-5431

The PHP JOSE Library by Gree Inc. before version 2.2.1 is vulnerable to key confusion/algorithm substitution in the JWS component resulting in bypassing the signature verification via crafted tokens.

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.009 (57.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Php_jose_project Php_jose
N/a Jose-php — versions fixed in 2.2.1

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_CONFIRM, Patch)

Frequently asked questions

What is CVE-2016-5431?: CVE-2016-5431 is a high-severity vulnerability in Php Jose Project, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2019-08-07.
How severe is CVE-2016-5431?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2016-5431 known to be exploited?: 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.