CVE-2017-1000242: Git client Insecure Temporary File Usage Vulnerability

LOW
Advisory Identifier: GHSA-fcxw-hhxq-48wx
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CVSS 3.3
CWE-200
Published
Advisory Summary

CVE-2017-1000242 is a LOW (CVSS 3.3) insecure temporary file usage vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Git client libraries in the Maven ecosystem. The issue involves insecure temporary file usage in jenkins git client plugin. Remediation is available by upgrading affected packages to version 2.4.3.

CVE-2017-1000242 at a Glance

CVE Identifier CVE-2017-1000242
GHSA Identifier GHSA-fcxw-hhxq-48wx
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Git client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2017-1000242

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: 2.4.3 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>git-client</artifactId>
    <version>2.4.3</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-2017-1000242, 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 2.4.3), 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. 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 2.4.2 and earlier creates temporary file with insecure permissions resulting in information disclosure

CVE-2017-1000242 Affected Git client Versions

1 component(s)
Fixed Versions:
2.4.3
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:git-client
maven/org.jenkins-ci.plugins/git-client
Maven
< 2.4.3
2.4.3

References

NVD — CVE-2017-1000242 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000242
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/git-client-plugin/commit/75ea3fe05650fc6ca09046a72493e2b3f066fb98
Git client Source Repository REPOSITORY
https://github.com/jenkinsci/git-client-plugin
Git client Security Information SECURITY
https://jenkins.io/security/advisory/2017-04-27
Git client Security Information SECURITY
http://www.securityfocus.com/bid/101940

Frequently Asked Questions

What is CVE-2017-1000242?
CVE-2017-1000242 is a security vulnerability in Git client involving Insecure temporary file usage in Jenkins Git Client Plugin under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Git client versions are affected?
Affected versions include releases prior to 2.4.3 across affected packages: org.jenkins-ci.plugins:git-client.
What version fixes CVE-2017-1000242?
Upgrading to 2.4.3 (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 2.4.3. Upgrade your dependency to 2.4.3 or later.
What is the CVSS score of CVE-2017-1000242?
CVE-2017-1000242 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2017-1000242?
CVE-2017-1000242 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Maven dependencies for CVE-2017-1000242?
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-fcxw-hhxq-48wx",
  "modified" : "2022-06-02T20:40:00Z",
  "published" : "2022-05-17T00:21:58Z",
  "aliases" : [ "CVE-2017-1000242" ],
  "summary" : "Insecure temporary file usage in Jenkins Git Client Plugin",
  "details" : "Jenkins Git Client Plugin 2.4.2 and earlier creates temporary file with insecure permissions resulting in information disclosure",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:git-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-1000242"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/git-client-plugin/commit/75ea3fe05650fc6ca09046a72493e2b3f066fb98"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/git-client-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2017-04-27"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/101940"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-02T20:40:00Z",
    "nvd_published_at" : "2017-11-01T13:29:00Z"
  }
}