CVE-2016-5431: Gree/jose PHP JOSE Library By Gree Vulnerability

HIGH
Advisory Identifier: GHSA-xm5f-hc9r-76f3
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CVSS 7.5
CWE-327
Published
Advisory Summary

CVE-2016-5431 is a HIGH (CVSS 7.5) php jose library by gree vulnerability (CWE-327: Use of a Broken or Risky Cryptographic Algorithm) affecting Gree/jose libraries in the Packagist ecosystem. The issue involves php jose library by gree inc. uses a broken or risky cryptographic algorithm. Remediation is available by upgrading affected packages to version 2.2.1.

CVE-2016-5431 at a Glance

CVE Identifier CVE-2016-5431
GHSA Identifier GHSA-xm5f-hc9r-76f3
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-327: Use of a Broken or Risky Cryptographic Algorithm
Affected Product Gree/jose
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2016-5431

To remediate this vulnerability, upgrade all affected Gree/jose dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

gree/jose fixed: 2.2.1 
Upgrade gree/jose to 2.2.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for gree/jose

How to Check if You Are Affected

To determine whether your application is affected by CVE-2016-5431, inspect your project dependencies for Gree/jose:

inspect dependencies for gree/jose

Analyze the terminal output to locate any version of Gree/jose in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-327: Use of a Broken or Risky Cryptographic Algorithm, where the product uses a broken or risky cryptographic algorithm or protocol. In Gree/jose, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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

CVE-2016-5431 Affected Gree/jose Versions

1 component(s)
Fixed Versions:
2.2.1
Product / Package Ecosystem Affected Versions Fixed Version
gree/jose
 Packagist
< 2.2.1
2.2.1

References

NVD — CVE-2016-5431 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5431
Security Fix Commit FIX COMMIT
https://github.com/nov/jose-php/commit/1cce55e27adf0274193eb1cd74b927a398a3df4b
Gree/jose Source Repository REPOSITORY
https://github.com/nov/jose-php

Frequently Asked Questions

What is CVE-2016-5431?
CVE-2016-5431 is a security vulnerability in Gree/jose involving PHP JOSE Library by Gree Inc. Uses a Broken or Risky Cryptographic Algorithm under CWE-327: Use of a Broken or Risky Cryptographic Algorithm.
Which Gree/jose versions are affected?
Affected versions include releases prior to 2.2.1 across affected packages: gree/jose.
What version fixes CVE-2016-5431?
Upgrading to 2.2.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gree/jose affected?
Yes, gree/jose is affected in releases prior to 2.2.1. Upgrade your dependency to 2.2.1 or later.
What is the CVSS score of CVE-2016-5431?
CVE-2016-5431 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2016-5431?
CVE-2016-5431 is classified under CWE-327: Use of a Broken or Risky Cryptographic Algorithm (The product uses a broken or risky cryptographic algorithm or protocol.).
How can I check Packagist dependencies for CVE-2016-5431?
Run the dependency tree command: 'inspect dependencies for gree/jose'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xm5f-hc9r-76f3",
  "modified" : "2023-03-03T23:14:26Z",
  "published" : "2022-05-24T16:52:44Z",
  "aliases" : [ "CVE-2016-5431" ],
  "summary" : "PHP JOSE Library by Gree Inc. Uses a Broken or Risky Cryptographic Algorithm",
  "details" : "The PHP JOSE Library by Gree Inc. prior to 2.2.1 is vulnerable to key confusion/algorithm substitution in the JWS component resulting in bypassing the signature verification via crafted tokens.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "gree/jose"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-5431"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nov/jose-php/commit/1cce55e27adf0274193eb1cd74b927a398a3df4b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nov/jose-php"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-327" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-03-03T23:14:26Z",
    "nvd_published_at" : "2019-08-07T15:15:00Z"
  }
}