CVE-2022-20614: Mailer Remote Code Execution Vulnerability

MODERATE
Advisory Identifier: GHSA-558x-h7rg-997v
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CVSS 4.3
CWE-732 CWE-862
Published
Advisory Summary

CVE-2022-20614 is a MODERATE (CVSS 4.3) remote code execution vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Mailer libraries in the Maven ecosystem. The issue involves incorrect permission assignment for critical resource in jenkins mailer plugin. Remediation is available by upgrading affected packages to version 408.vd726a, 1.34.2.

CVE-2022-20614 at a Glance

CVE Identifier CVE-2022-20614
GHSA Identifier GHSA-558x-h7rg-997v
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
Affected Product Mailer
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

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:N/I:L/A:N).

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 None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-20614

To remediate this vulnerability, upgrade all affected Mailer 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:mailer fixed: 408.vd726a 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>mailer</artifactId>
    <version>408.vd726a</version>
</dependency>
org.jenkins-ci.plugins:mailer fixed: 1.34.2 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>mailer</artifactId>
    <version>1.34.2</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-2022-20614, 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 Mailer in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 408.vd726a), 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-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 Mailer, 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 Mailer Plugin prior to 408.vd726a_1130320 and 1.34.2 does not perform a permission check in a method implementing form validation. This allows attackers with Overall/Read access to use the DNS used by the Jenkins instance to resolve an attacker-specified hostname. Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. Mailer Plugin 408.vd726a_1130320 and 1.34.2 requires POST requests and Overall/Administer permission for the affected form validation method.

CVE-2022-20614 Affected Mailer Versions

2 component(s)
Fixed Versions:
408.vd726a1.34.2
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:mailer
maven/org.jenkins-ci.plugins/mailer
Maven
≥ 391.ve4a38c1bcf4b
< 408.vd726a
408.vd726a
org.jenkins-ci.plugins:mailer
maven/org.jenkins-ci.plugins/mailer
Maven
< 1.34.2
1.34.2

References

NVD — CVE-2022-20614 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20614
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/mailer-plugin/commit/5e6051fae61a43564e22aa89cb24ed8a42a26052
Mailer Security Information SECURITY
https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-2163
Mailer Security Information SECURITY
https://www.oracle.com/security-alerts/cpuapr2022.html
Mailer Security Information SECURITY
http://www.openwall.com/lists/oss-security/2022/01/12/6

Frequently Asked Questions

What is CVE-2022-20614?
CVE-2022-20614 is a security vulnerability in Mailer involving Incorrect Permission Assignment for Critical Resource in Jenkins Mailer Plugin under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Mailer versions are affected?
Affected versions include releases prior to 408.vd726a, 1.34.2 across affected packages: org.jenkins-ci.plugins:mailer.
What version fixes CVE-2022-20614?
Upgrading to 408.vd726a, 1.34.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mailer affected?
Yes, org.jenkins-ci.plugins:mailer is affected in releases prior to 408.vd726a, 1.34.2. Upgrade your dependency to 408.vd726a, 1.34.2 or later.
What is the CVSS score of CVE-2022-20614?
CVE-2022-20614 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2022-20614?
CVE-2022-20614 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-2022-20614?
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-558x-h7rg-997v",
  "modified" : "2023-05-23T19:36:39Z",
  "published" : "2022-01-13T00:01:04Z",
  "aliases" : [ "CVE-2022-20614" ],
  "summary" : "Incorrect Permission Assignment for Critical Resource in Jenkins Mailer Plugin",
  "details" : "Jenkins Mailer Plugin prior to 408.vd726a_1130320 and 1.34.2 does not perform a permission check in a method implementing form validation.\n\nThis allows attackers with Overall/Read access to use the DNS used by the Jenkins instance to resolve an attacker-specified hostname.\n\nAdditionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.\n\nMailer Plugin 408.vd726a_1130320 and 1.34.2 requires POST requests and Overall/Administer permission for the affected form validation method.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:mailer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "391.ve4a38c1bcf4b"
      }, {
        "fixed" : "408.vd726a"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:mailer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.34.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-20614"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/mailer-plugin/commit/5e6051fae61a43564e22aa89cb24ed8a42a26052"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-2163"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuapr2022.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2022/01/12/6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-732", "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-20T22:50:04Z",
    "nvd_published_at" : "2022-01-12T20:15:00Z"
  }
}