CVE-2019-10392: Git client Improper Neutralization Of Special Elements Vulnerability

HIGH
Advisory Identifier: GHSA-hw6x-2qwv-rxr7
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CVSS 8.8
CWE-78
Published
Advisory Summary

CVE-2019-10392 is a HIGH (CVSS 8.8) improper neutralization of special elements vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Git client libraries in the Maven ecosystem. The issue involves improper neutralization of special elements used in an os command in jenkins git client plugin. Remediation is available by upgrading affected packages to version 2.8.5.

CVE-2019-10392 at a Glance

CVE Identifier CVE-2019-10392
GHSA Identifier GHSA-hw6x-2qwv-rxr7
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 Git client
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-2019-10392

To remediate this vulnerability, upgrade all affected Git client 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:git-client fixed: 2.8.5 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>git-client</artifactId>
    <version>2.8.5</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-2019-10392, 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 Git client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.8.5), 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-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 Git client, 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

Jenkins Git Client Plugin 2.8.4 and earlier did not properly restrict values passed as URL argument to an invocation of 'git ls-remote', resulting in OS command injection.

CVE-2019-10392 Affected Git client Versions

1 component(s)
Fixed Versions:
2.8.5
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:git-client
maven/org.jenkins-ci.plugins/git-client
Maven
< 2.8.5
2.8.5

References

NVD — CVE-2019-10392 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10392
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/git-client-plugin/commit/899123fa2eb9dd2c37137aae630c47c6be6b4b02
Git client Security Information SECURITY
https://jenkins.io/security/advisory/2019-09-12/#SECURITY-1534
Git client Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/12/2

Frequently Asked Questions

What is CVE-2019-10392?
CVE-2019-10392 is a security vulnerability in Git client involving Improper Neutralization of Special Elements used in an OS Command in Jenkins Git Client Plugin under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Git client versions are affected?
Affected versions include releases prior to 2.8.5 across affected packages: org.jenkins-ci.plugins:git-client.
What version fixes CVE-2019-10392?
Upgrading to 2.8.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is git-client affected?
Yes, org.jenkins-ci.plugins:git-client is affected in releases prior to 2.8.5. Upgrade your dependency to 2.8.5 or later.
What is the CVSS score of CVE-2019-10392?
CVE-2019-10392 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-2019-10392?
CVE-2019-10392 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-2019-10392?
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-hw6x-2qwv-rxr7",
  "modified" : "2022-06-28T22:28:13Z",
  "published" : "2022-05-24T16:55:58Z",
  "aliases" : [ "CVE-2019-10392" ],
  "summary" : "Improper Neutralization of Special Elements used in an OS Command in Jenkins Git Client Plugin",
  "details" : "Jenkins Git Client Plugin 2.8.4 and earlier did not properly restrict values passed as URL argument to an invocation of 'git ls-remote', resulting in OS command injection.",
  "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" : "org.jenkins-ci.plugins:git-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.8.5"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.8.4"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10392"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/git-client-plugin/commit/899123fa2eb9dd2c37137aae630c47c6be6b4b02"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-09-12/#SECURITY-1534"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2019/09/12/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-28T22:28:13Z",
    "nvd_published_at" : "2019-09-12T14:15:00Z"
  }
}