CVE-2017-1000096: Workflow cps Arbitrary Code Execution Due To Vulnerability

HIGH
Advisory Identifier: GHSA-mhwq-4mh7-fv7c
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CVSS 8.8
CWE-732
Published
Advisory Summary

CVE-2017-1000096 is a HIGH (CVSS 8.8) arbitrary code execution due to vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Workflow cps libraries in the Maven ecosystem. The issue involves arbitrary code execution due to incomplete sandbox protection in jenkins pipeline. Remediation is available by upgrading affected packages to version 2.36.1.

CVE-2017-1000096 at a Glance

CVE Identifier CVE-2017-1000096
GHSA Identifier GHSA-mhwq-4mh7-fv7c
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
Affected Product Workflow cps
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2017-1000096

To remediate this vulnerability, upgrade all affected Workflow cps 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.workflow:workflow-cps fixed: 2.36.1 
<dependency>
    <groupId>org.jenkins-ci.plugins.workflow</groupId>
    <artifactId>workflow-cps</artifactId>
    <version>2.36.1</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.workflow

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2017-1000096, inspect your build dependencies using the Maven Dependency Plugin:

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

Analyze the terminal output to locate any version of Workflow cps in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.36.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins.workflow 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-732: Incorrect Permission Assignment for Critical Resource, where the product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. In Workflow cps, 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

Arbitrary code execution due to incomplete sandbox protection: Constructors, instance variable initializers, and instance initializers in Pipeline scripts were not subject to sandbox protection, and could therefore execute arbitrary code. This could be exploited e.g. by regular Jenkins users with the permission to configure Pipelines in Jenkins, or by trusted committers to repositories containing Jenkinsfiles.

CVE-2017-1000096 Affected Workflow cps Versions

1 component(s)
Fixed Versions:
2.36.1
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins.workflow:workflow-cps
maven/org.jenkins-ci.plugins.workflow/workflow-cps
Maven
< 2.36.1
2.36.1

References

NVD — CVE-2017-1000096 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000096
Workflow cps Security Information SECURITY
https://jenkins.io/security/advisory/2017-07-10
Workflow cps Security Information SECURITY
http://www.securityfocus.com/bid/99571

Frequently Asked Questions

What is CVE-2017-1000096?
CVE-2017-1000096 is a security vulnerability in Workflow cps involving Arbitrary code execution due to incomplete sandbox protection in Jenkins Pipeline under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Workflow cps versions are affected?
Affected versions include releases prior to 2.36.1 across affected packages: org.jenkins-ci.plugins.workflow:workflow-cps.
What version fixes CVE-2017-1000096?
Upgrading to 2.36.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is workflow-cps affected?
Yes, org.jenkins-ci.plugins.workflow:workflow-cps is affected in releases prior to 2.36.1. Upgrade your dependency to 2.36.1 or later.
What is the CVSS score of CVE-2017-1000096?
CVE-2017-1000096 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2017-1000096?
CVE-2017-1000096 is classified under CWE-732: Incorrect Permission Assignment for Critical Resource (The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.).
How can I check Maven dependencies for CVE-2017-1000096?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins.workflow'. 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-mhwq-4mh7-fv7c",
  "modified" : "2024-01-30T22:45:53Z",
  "published" : "2022-05-13T01:40:55Z",
  "aliases" : [ "CVE-2017-1000096" ],
  "summary" : "Arbitrary code execution due to incomplete sandbox protection in Jenkins Pipeline",
  "details" : "Arbitrary code execution due to incomplete sandbox protection: Constructors, instance variable initializers, and instance initializers in Pipeline scripts were not subject to sandbox protection, and could therefore execute arbitrary code. This could be exploited e.g. by regular Jenkins users with the permission to configure Pipelines in Jenkins, or by trusted committers to repositories containing Jenkinsfiles.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins.workflow:workflow-cps"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.36.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.36"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-1000096"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2017-07-10"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/99571"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-732" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-30T22:45:53Z",
    "nvd_published_at" : "2017-10-05T01:29:00Z"
  }
}