CVE-2017-2651: Mailer Exposure Of Sensitive Information To Vulnerability

LOW
Advisory Identifier: GHSA-9v72-p5p3-9w65
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CVSS 3.7
CWE-200
Published
Advisory Summary

CVE-2017-2651 is a LOW (CVSS 3.7) exposure of sensitive information to vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Mailer libraries in the Maven ecosystem. The issue involves exposure of sensitive information to an unauthorized actor in jenkins-mailer-plugin. Remediation is available by upgrading affected packages to version 1.20.

CVE-2017-2651 at a Glance

CVE Identifier CVE-2017-2651
GHSA Identifier GHSA-9v72-p5p3-9w65
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Mailer
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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 None (I:N)
Availability None (A:N)

How to Fix CVE-2017-2651

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: 1.20 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>mailer</artifactId>
    <version>1.20</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-2017-2651, 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 1.20), 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 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 before version 1.20 is vulnerable to an information disclosure while using the feature to send emails to a dynamically created list of users based on the changelogs. This could in some cases result in emails being sent to people who have no user account in Jenkins, and in rare cases even people who were not involved in whatever project was being built, due to some mapping based on the local-part of email addresses.

CVE-2017-2651 Affected Mailer Versions

1 component(s)
Fixed Versions:
1.20
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:mailer
maven/org.jenkins-ci.plugins/mailer
Maven
< 1.20
1.20

References

NVD — CVE-2017-2651 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-2651
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2651
Mailer Security Information SECURITY
https://jenkins.io/security/advisory/2017-03-20
Mailer Security Information SECURITY
http://www.securityfocus.com/bid/96984

Frequently Asked Questions

What is CVE-2017-2651?
CVE-2017-2651 is a security vulnerability in Mailer involving Exposure of Sensitive Information to an Unauthorized Actor in Jenkins-mailer-plugin under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Mailer versions are affected?
Affected versions include releases prior to 1.20 across affected packages: org.jenkins-ci.plugins:mailer.
What version fixes CVE-2017-2651?
Upgrading to 1.20 (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 1.20. Upgrade your dependency to 1.20 or later.
What is the CVSS score of CVE-2017-2651?
CVE-2017-2651 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2017-2651?
CVE-2017-2651 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-2017-2651?
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-9v72-p5p3-9w65",
  "modified" : "2022-07-01T17:34:20Z",
  "published" : "2022-05-13T01:36:51Z",
  "aliases" : [ "CVE-2017-2651" ],
  "summary" : "Exposure of Sensitive Information to an Unauthorized Actor in Jenkins-mailer-plugin",
  "details" : "jenkins-mailer-plugin before version 1.20 is vulnerable to an information disclosure while using the feature to send emails to a dynamically created list of users based on the changelogs. This could in some cases result in emails being sent to people who have no user account in Jenkins, and in rare cases even people who were not involved in whatever project was being built, due to some mapping based on the local-part of email addresses.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:mailer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.20"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.19"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-2651"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2651"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2017-03-20"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/96984"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-07-01T17:34:20Z",
    "nvd_published_at" : "2018-07-27T18:29:00Z"
  }
}