CVE-2020-2159: Cryptomove OS Command Injection Vulnerability

HIGH
Advisory Identifier: GHSA-p5x5-jg3j-2jcj
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CVSS 8.8
CWE-78
Published
Advisory Summary

CVE-2020-2159 is a HIGH (CVSS 8.8) os command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Cryptomove libraries in the Maven ecosystem. The issue involves os command injection in cryptomove plugin. Remediation is available in the latest vendor maintenance releases.

CVE-2020-2159 at a Glance

CVE Identifier CVE-2020-2159
GHSA Identifier GHSA-p5x5-jg3j-2jcj
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Cryptomove
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: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-2020-2159

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

io.jenkins.plugins:cryptomove fixed: Latest secure release 
<dependency>
    <groupId>io.jenkins.plugins</groupId>
    <artifactId>cryptomove</artifactId>
    <version>Latest secure release</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=io.jenkins.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-2159, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=io.jenkins.plugins

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

Note: The mvn dependency:tree -Dincludes=io.jenkins.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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In Cryptomove, 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

CryptoMove Plugin 0.1.33 and earlier allows the configuration of an OS command to execute as part of its build step configuration. This command will be executed on the Jenkins controller as the OS user account running Jenkins, allowing user with Job/Configure permission to execute an arbitrary OS command on the Jenkins controller.

CVE-2020-2159 Affected Cryptomove Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
io.jenkins.plugins:cryptomove
maven/io.jenkins.plugins/cryptomove
Maven
≤ 0.1.33

References

NVD — CVE-2020-2159 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2159
Cryptomove Source Repository REPOSITORY
https://github.com/jenkinsci/cryptomove-plugin
Cryptomove Security Information SECURITY
https://jenkins.io/security/advisory/2020-03-09/#SECURITY-1635
Cryptomove Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/03/09/1

Frequently Asked Questions

What is CVE-2020-2159?
CVE-2020-2159 is a security vulnerability in Cryptomove involving OS command injection in CryptoMove Plugin under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Cryptomove versions are affected?
Affected versions include releases prior to current release patches across affected packages: io.jenkins.plugins:cryptomove.
What version fixes CVE-2020-2159?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is cryptomove affected?
Yes, io.jenkins.plugins:cryptomove is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2020-2159?
CVE-2020-2159 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-2159?
CVE-2020-2159 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check Maven dependencies for CVE-2020-2159?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=io.jenkins.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-p5x5-jg3j-2jcj",
  "modified" : "2023-01-05T21:09:57Z",
  "published" : "2022-05-24T17:10:30Z",
  "aliases" : [ "CVE-2020-2159" ],
  "summary" : "OS command injection in CryptoMove Plugin",
  "details" : "CryptoMove Plugin 0.1.33 and earlier allows the configuration of an OS command to execute as part of its build step configuration. This command will be executed on the Jenkins controller as the OS user account running Jenkins, allowing user with Job/Configure permission to execute an arbitrary OS command on the Jenkins controller.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.jenkins.plugins:cryptomove"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.1.33"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2159"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/cryptomove-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2020-03-09/#SECURITY-1635"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/03/09/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-05T21:09:57Z",
    "nvd_published_at" : "2020-03-09T16:15:00Z"
  }
}