CVE-2019-10431: Script security Improper Control Of Generation Of Vulnerability

CRITICAL
Advisory Identifier: GHSA-72gx-qq2m-6xr2
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CVSS 9.9
CWE-94
Published
Advisory Summary

CVE-2019-10431 is a CRITICAL (CVSS 9.9) improper control of generation of vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Script security libraries in the Maven ecosystem. The issue involves improper control of generation of code in jenkins script security plugin. Remediation is available by upgrading affected packages to version 1.65.

CVE-2019-10431 at a Glance

CVE Identifier CVE-2019-10431
GHSA Identifier GHSA-72gx-qq2m-6xr2
Severity CRITICAL
CVSS v3.1 Base Score 9.9
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Script security
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.9

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

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

How to Fix CVE-2019-10431

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: 1.65 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>script-security</artifactId>
    <version>1.65</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-2019-10431, 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 1.65), 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-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. 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 1.64 and earlier related to the handling of default parameter expressions in constructors allowed attackers to execute arbitrary code in sandboxed scripts.

CVE-2019-10431 Affected Script security Versions

1 component(s)
Fixed Versions:
1.65
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:script-security
maven/org.jenkins-ci.plugins/script-security
Maven
< 1.65
1.65

References

NVD — CVE-2019-10431 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10431
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/script-security-plugin/commit/415b6e2f3fa0c2e4bd2f9c4a589a9e1fc9cbac8b
access.redhat.com/errata/rhsa-2019:40... WEB
https://access.redhat.com/errata/RHSA-2019:4055
access.redhat.com/errata/rhsa-2019:40... WEB
https://access.redhat.com/errata/RHSA-2019:4089
access.redhat.com/errata/rhsa-2019:40... WEB
https://access.redhat.com/errata/RHSA-2019:4097
Script security Source Repository REPOSITORY
https://github.com/jenkinsci/script-security-plugin
Script security Source Repository REPOSITORY
https://github.com/jenkinsci/script-security-plugin/blob/7bd58b8635709cecdb50018844e5d6dbe1ce13ea/CHANGELOG.md
Script security Security Information SECURITY
https://jenkins.io/security/advisory/2019-10-01/#SECURITY-1579
Script security Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/10/01/2

Frequently Asked Questions

What is CVE-2019-10431?
CVE-2019-10431 is a security vulnerability in Script security involving Improper Control of Generation of Code in Jenkins Script Security Plugin under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Script security versions are affected?
Affected versions include releases prior to 1.65 across affected packages: org.jenkins-ci.plugins:script-security.
What version fixes CVE-2019-10431?
Upgrading to 1.65 (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 1.65. Upgrade your dependency to 1.65 or later.
What is the CVSS score of CVE-2019-10431?
CVE-2019-10431 has a CVSS v3.1 base score of 9.9 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2019-10431?
CVE-2019-10431 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Maven dependencies for CVE-2019-10431?
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-72gx-qq2m-6xr2",
  "modified" : "2023-10-26T18:53:29Z",
  "published" : "2022-05-24T16:57:28Z",
  "aliases" : [ "CVE-2019-10431" ],
  "summary" : "Improper Control of Generation of Code in Jenkins Script Security Plugin",
  "details" : "A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.64 and earlier related to the handling of default parameter expressions in constructors allowed attackers to execute arbitrary code in sandboxed scripts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:script-security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.65"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.64"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10431"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/script-security-plugin/commit/415b6e2f3fa0c2e4bd2f9c4a589a9e1fc9cbac8b"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:4055"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:4089"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:4097"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/script-security-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/script-security-plugin/blob/7bd58b8635709cecdb50018844e5d6dbe1ce13ea/CHANGELOG.md"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-10-01/#SECURITY-1579"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2019/10/01/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-28T16:07:03Z",
    "nvd_published_at" : "2019-10-01T14:15:00Z"
  }
}