CVE-2019-1003040: Script security Sandbox Bypass Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-3pv3-jj4h-p528
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CVSS 9.8
CWE-470
Published
Advisory Summary

CVE-2019-1003040 is a CRITICAL (CVSS 9.8) sandbox bypass vulnerability vulnerability (CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')) affecting Script security libraries in the Maven ecosystem. The issue involves sandbox bypass vulnerability in jenkins script security plugin. Remediation is available by upgrading affected packages to version 1.56.

CVE-2019-1003040 at a Glance

CVE Identifier CVE-2019-1003040
GHSA Identifier GHSA-3pv3-jj4h-p528
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Affected Product Script security
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:N/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 None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2019-1003040

To remediate this vulnerability, upgrade all affected Script security 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:script-security fixed: 1.56 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>script-security</artifactId>
    <version>1.56</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-2019-1003040, 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 Script security in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.56), 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-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection'), where the product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code. In Script security, 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 sandbox bypass vulnerability in Jenkins Script Security Plugin 1.55 and earlier allows attackers to invoke arbitrary constructors in sandboxed scripts.

CVE-2019-1003040 Affected Script security Versions

1 component(s)
Fixed Versions:
1.56
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:script-security
maven/org.jenkins-ci.plugins/script-security
Maven
< 1.56
1.56

References

NVD — CVE-2019-1003040 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1003040
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/script-security-plugin/commit/8424ad90547e37a2bd3b6a3a7da48eb1af9cd0ee
access.redhat.com/errata/rhsa-2019:14... WEB
https://access.redhat.com/errata/RHSA-2019:1423
Script security Source Repository REPOSITORY
https://github.com/jenkinsci/script-security-plugin
Script security Security Information SECURITY
https://jenkins.io/security/advisory/2019-03-25/#SECURITY-1353
Script security Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/03/28/2
Script security Security Information SECURITY
http://www.securityfocus.com/bid/107628

Frequently Asked Questions

What is CVE-2019-1003040?
CVE-2019-1003040 is a security vulnerability in Script security involving Sandbox bypass vulnerability in Jenkins Script Security Plugin under CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection').
Which Script security versions are affected?
Affected versions include releases prior to 1.56 across affected packages: org.jenkins-ci.plugins:script-security.
What version fixes CVE-2019-1003040?
Upgrading to 1.56 (or the latest patched release for your respective branch) resolves the vulnerability.
Is script-security affected?
Yes, org.jenkins-ci.plugins:script-security is affected in releases prior to 1.56. Upgrade your dependency to 1.56 or later.
What is the CVSS score of CVE-2019-1003040?
CVE-2019-1003040 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-1003040?
CVE-2019-1003040 is classified under CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') (The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.).
How can I check Maven dependencies for CVE-2019-1003040?
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-3pv3-jj4h-p528",
  "modified" : "2022-06-01T19:42:19Z",
  "published" : "2022-05-13T01:15:09Z",
  "aliases" : [ "CVE-2019-1003040" ],
  "summary" : "Sandbox bypass vulnerability in Jenkins Script Security Plugin",
  "details" : "A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.55 and earlier allows attackers to invoke arbitrary constructors in sandboxed scripts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:script-security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.56"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1003040"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/script-security-plugin/commit/8424ad90547e37a2bd3b6a3a7da48eb1af9cd0ee"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:1423"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/script-security-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-03-25/#SECURITY-1353"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2019/03/28/2"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/107628"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-470" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-01T19:42:19Z",
    "nvd_published_at" : "2019-03-28T18:29:00Z"
  }
}