CVE-2020-2286: Role strategy Improper Authorization Due To Caching Vulnerability

HIGH
Advisory Identifier: GHSA-25g4-p347-x748
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CVSS 8.8
CWE-863
Published
Advisory Summary

CVE-2020-2286 is a HIGH (CVSS 8.8) improper authorization due to caching vulnerability (CWE-863: Incorrect Authorization) affecting Role strategy libraries in the Maven ecosystem. The issue involves improper authorization due to caching in jenkins role-based authorization strategy plugin. Remediation is available by upgrading affected packages to version 3.1.

CVE-2020-2286 at a Glance

CVE Identifier CVE-2020-2286
GHSA Identifier GHSA-25g4-p347-x748
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-863: Incorrect Authorization
Affected Product Role strategy
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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:R/S:U/C:H/I:H/A:H).

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

How to Fix CVE-2020-2286

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

org.jenkins-ci.plugins:role-strategy fixed: 3.1 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>role-strategy</artifactId>
    <version>3.1</version>
</dependency>
Verify Direct and Transitive Dependencies

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

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-2286, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

Analyze the terminal output to locate any version of Role strategy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Role strategy, 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

Role-based Authorization Strategy Plugin 2.12 and newer uses a cache to speed up permission lookups. Role-based Authorization Strategy Plugin 3.0 and earlier this cache is not invalidated properly when an administrator changes the permission configuration. This can result in permissions being granted long after the configuration was changed to no longer grant them. Role-based Authorization Strategy Plugin 3.1 properly invalidates the cache on configuration changes.

CVE-2020-2286 Affected Role strategy Versions

1 component(s)
Fixed Versions:
3.1
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:role-strategy
maven/org.jenkins-ci.plugins/role-strategy
Maven
≥ 2.12
< 3.1
3.1

References

NVD — CVE-2020-2286 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2286
Role strategy Security Information SECURITY
https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1767
Role strategy Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/10/08/5

Frequently Asked Questions

What is CVE-2020-2286?
CVE-2020-2286 is a security vulnerability in Role strategy involving Improper authorization due to caching in Jenkins Role-based Authorization Strategy Plugin under CWE-863: Incorrect Authorization.
Which Role strategy versions are affected?
Affected versions include releases prior to 3.1 across affected packages: org.jenkins-ci.plugins:role-strategy.
What version fixes CVE-2020-2286?
Upgrading to 3.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is role-strategy affected?
Yes, org.jenkins-ci.plugins:role-strategy is affected in releases prior to 3.1. Upgrade your dependency to 3.1 or later.
What is the CVSS score of CVE-2020-2286?
CVE-2020-2286 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-2286?
CVE-2020-2286 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Maven dependencies for CVE-2020-2286?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins'. 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-25g4-p347-x748",
  "modified" : "2023-10-27T11:34:02Z",
  "published" : "2022-05-24T17:30:18Z",
  "aliases" : [ "CVE-2020-2286" ],
  "summary" : "Improper authorization due to caching in Jenkins Role-based Authorization Strategy Plugin",
  "details" : "Role-based Authorization Strategy Plugin 2.12 and newer uses a cache to speed up permission lookups. Role-based Authorization Strategy Plugin 3.0 and earlier this cache is not invalidated properly when an administrator changes the permission configuration. This can result in permissions being granted long after the configuration was changed to no longer grant them. Role-based Authorization Strategy Plugin 3.1 properly invalidates the cache on configuration changes.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:role-strategy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.12"
      }, {
        "fixed" : "3.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2286"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1767"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/10/08/5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-21T02:15:49Z",
    "nvd_published_at" : "2020-10-08T13:15:00Z"
  }
}