CVE-2020-2142: P4 Missing Permission Checks Vulnerability

MODERATE
Advisory Identifier: GHSA-f9v6-p7hp-c3qx
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CVSS 4.3
CWE-319 CWE-862
Published
Advisory Summary

CVE-2020-2142 is a MODERATE (CVSS 4.3) missing permission checks vulnerability (CWE-319: Cleartext Transmission of Sensitive Information) affecting P4 libraries in the Maven ecosystem. The issue involves missing permission checks in jenkins p4 plugin. Remediation is available by upgrading affected packages to version 1.10.11.

CVE-2020-2142 at a Glance

CVE Identifier CVE-2020-2142
GHSA Identifier GHSA-f9v6-p7hp-c3qx
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-319: Cleartext Transmission of Sensitive Information
Affected Product P4
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

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:N/I:L/A:N).

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 None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-2142

To remediate this vulnerability, upgrade all affected P4 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:p4 fixed: 1.10.11 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>p4</artifactId>
    <version>1.10.11</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-2020-2142, 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 P4 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.11), 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-319: Cleartext Transmission of Sensitive Information, where the product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. In P4, 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

A missing permission check in Jenkins P4 Plugin 1.10.10 and earlier allows attackers with Overall/Read permission to trigger builds or add labels in the Perforce repository. P4 Plugin 1.10.11 appropriate user permissions for the affected HTTP endpoints.

CVE-2020-2142 Affected P4 Versions

1 component(s)
Fixed Versions:
1.10.11
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:p4
maven/org.jenkins-ci.plugins/p4
Maven
< 1.10.11
1.10.11

References

NVD — CVE-2020-2142 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2142
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/p4-plugin/commit/2f2a31d8d36de7abab45820fab3a82f4c682b760
P4 Source Repository REPOSITORY
https://github.com/jenkinsci/p4-plugin
P4 Security Information SECURITY
https://jenkins.io/security/advisory/2020-03-09/#SECURITY-1765
P4 Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/03/09/1

Frequently Asked Questions

What is CVE-2020-2142?
CVE-2020-2142 is a security vulnerability in P4 involving Missing permission checks in Jenkins P4 Plugin under CWE-319: Cleartext Transmission of Sensitive Information.
Which P4 versions are affected?
Affected versions include releases prior to 1.10.11 across affected packages: org.jenkins-ci.plugins:p4.
What version fixes CVE-2020-2142?
Upgrading to 1.10.11 (or the latest patched release for your respective branch) resolves the vulnerability.
Is p4 affected?
Yes, org.jenkins-ci.plugins:p4 is affected in releases prior to 1.10.11. Upgrade your dependency to 1.10.11 or later.
What is the CVSS score of CVE-2020-2142?
CVE-2020-2142 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2020-2142?
CVE-2020-2142 is classified under CWE-319: Cleartext Transmission of Sensitive Information (The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.).
How can I check Maven dependencies for CVE-2020-2142?
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-f9v6-p7hp-c3qx",
  "modified" : "2023-01-14T05:22:07Z",
  "published" : "2022-05-24T17:10:28Z",
  "aliases" : [ "CVE-2020-2142" ],
  "summary" : "Missing permission checks in Jenkins P4 Plugin",
  "details" : "A missing permission check in Jenkins P4 Plugin 1.10.10 and earlier allows attackers with Overall/Read permission to trigger builds or add labels in the Perforce repository.\n\nP4 Plugin 1.10.11 appropriate user permissions for the affected HTTP endpoints.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:p4"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.10.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2142"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/p4-plugin/commit/2f2a31d8d36de7abab45820fab3a82f4c682b760"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/p4-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2020-03-09/#SECURITY-1765"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/03/09/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-319", "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-14T05:22:07Z",
    "nvd_published_at" : "2020-03-09T16:15:00Z"
  }
}