CVE-2022-36881: Git client Jenkins Git Client Plugin 3.11.0 Vulnerability

MODERATE
Advisory Identifier: GHSA-cm7j-p8hc-97vj
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CVSS 4.8
CWE-322 CWE-295
Published
Advisory Summary

CVE-2022-36881 is a MODERATE (CVSS 4.8) jenkins git client plugin 3.11.0 vulnerability (CWE-322: Key Exchange without Entity Authentication) affecting Git client libraries in the Maven ecosystem. The issue involves jenkins git client plugin 3.11.0 does not perform ssh host key verification. Remediation is available by upgrading affected packages to version 3.11.1.

CVE-2022-36881 at a Glance

CVE Identifier CVE-2022-36881
GHSA Identifier GHSA-cm7j-p8hc-97vj
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-322: Key Exchange without Entity Authentication
Affected Product Git client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.8

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

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

How to Fix CVE-2022-36881

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: 3.11.1 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>git-client</artifactId>
    <version>3.11.1</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

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2022-36881, 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 3.11.1), 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-322: Key Exchange without Entity Authentication, where the product performs a key exchange with an actor without verifying the identity of that actor. 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 3.11.0 and earlier does not perform SSH host key verification when connecting to Git repositories via SSH, enabling man-in-the-middle attacks. Git client Plugin 3.11.1 provides strategies for performing host key verification for administrators to select the one that meets their security needs. For more information see [the plugin documentation](https://github.com/jenkinsci/git-client-plugin#ssh-host-key-verification).

CVE-2022-36881 Affected Git client Versions

1 component(s)
Fixed Versions:
3.11.1
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:git-client
maven/org.jenkins-ci.plugins/git-client
Maven
< 3.11.1
3.11.1

References

NVD — CVE-2022-36881 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-36881
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/git-client-plugin/commit/88f52c6c9b18bca4ad210e3b9910a49433583fd9
Git client Source Repository REPOSITORY
https://github.com/jenkinsci/git-client-plugin
Git client Security Information SECURITY
https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1468
Git client Security Information SECURITY
http://www.openwall.com/lists/oss-security/2022/07/27/1

Frequently Asked Questions

What is CVE-2022-36881?
CVE-2022-36881 is a security vulnerability in Git client involving Jenkins Git client plugin 3.11.0 does not perform SSH host key verification under CWE-322: Key Exchange without Entity Authentication.
Which Git client versions are affected?
Affected versions include releases prior to 3.11.1 across affected packages: org.jenkins-ci.plugins:git-client.
What version fixes CVE-2022-36881?
Upgrading to 3.11.1 (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 3.11.1. Upgrade your dependency to 3.11.1 or later.
What is the CVSS score of CVE-2022-36881?
CVE-2022-36881 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2022-36881?
CVE-2022-36881 is classified under CWE-322: Key Exchange without Entity Authentication (The product performs a key exchange with an actor without verifying the identity of that actor.).
How can I check Maven dependencies for CVE-2022-36881?
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-cm7j-p8hc-97vj",
  "modified" : "2022-12-12T20:36:46Z",
  "published" : "2022-07-28T00:00:43Z",
  "aliases" : [ "CVE-2022-36881" ],
  "summary" : "Jenkins Git client plugin 3.11.0 does not perform SSH host key verification",
  "details" : "Jenkins Git client plugin 3.11.0 and earlier does not perform SSH host key verification when connecting to Git repositories via SSH, enabling man-in-the-middle attacks. Git client Plugin 3.11.1 provides strategies for performing host key verification for administrators to select the one that meets their security needs. For more information see [the plugin documentation](https://github.com/jenkinsci/git-client-plugin#ssh-host-key-verification).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:git-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.11.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.11.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-36881"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/git-client-plugin/commit/88f52c6c9b18bca4ad210e3b9910a49433583fd9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/git-client-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1468"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2022/07/27/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-295", "CWE-322" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-08-10T17:39:44Z",
    "nvd_published_at" : "2022-07-27T15:15:00Z"
  }
}