CVE-2023-40349: Gogs webhook Jenkins Gogs Plugin Vulnerable To Vulnerability

MODERATE
Advisory Identifier: GHSA-rc33-44qp-vpvq
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CVSS 6.5
CWE-665
Published
Advisory Summary

CVE-2023-40349 is a MODERATE (CVSS 6.5) jenkins gogs plugin vulnerable to vulnerability (CWE-665: Improper Initialization) affecting Gogs webhook libraries in the Maven ecosystem. The issue involves jenkins gogs plugin vulnerable to unsafe default behavior and information disclosure. Remediation is available in the latest vendor maintenance releases.

CVE-2023-40349 at a Glance

CVE Identifier CVE-2023-40349
GHSA Identifier GHSA-rc33-44qp-vpvq
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-665: Improper Initialization
Affected Product Gogs webhook
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
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-2023-40349

To remediate this vulnerability, upgrade all affected Gogs webhook 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:gogs-webhook fixed: Latest secure release 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>gogs-webhook</artifactId>
    <version>Latest secure release</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-2023-40349, 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 Gogs webhook in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-665: Improper Initialization, where the product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. In Gogs webhook, 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 Gogs Plugin provides a webhook endpoint at /gogs-webhook that can be used to trigger builds of jobs. In Gogs Plugin 1.0.15 and earlier, an option to specify a Gogs secret for this webhook is provided, but not enabled by default. This allows unauthenticated attackers to trigger builds of jobs corresponding to the attacker-specified job name. Additionally, the output of the webhook endpoint includes whether a job corresponding to the attacker-specified job name exists, even if the attacker has no permission to access it. As of publication of this advisory, there is no fix.

CVE-2023-40349 Affected Gogs webhook Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:gogs-webhook
maven/org.jenkins-ci.plugins/gogs-webhook
Maven
≤ 1.0.15

References

NVD — CVE-2023-40349 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40349
Gogs webhook Security Information SECURITY
https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-2894
Gogs webhook Security Information SECURITY
http://www.openwall.com/lists/oss-security/2023/08/16/3

Frequently Asked Questions

What is CVE-2023-40349?
CVE-2023-40349 is a security vulnerability in Gogs webhook involving Jenkins Gogs Plugin vulnerable to unsafe default behavior and information disclosure under CWE-665: Improper Initialization.
Which Gogs webhook versions are affected?
Affected versions include releases prior to current release patches across affected packages: org.jenkins-ci.plugins:gogs-webhook.
What version fixes CVE-2023-40349?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is gogs-webhook affected?
Yes, org.jenkins-ci.plugins:gogs-webhook is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-40349?
CVE-2023-40349 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2023-40349?
CVE-2023-40349 is classified under CWE-665: Improper Initialization (The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.).
How can I check Maven dependencies for CVE-2023-40349?
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-rc33-44qp-vpvq",
  "modified" : "2023-08-16T21:04:57Z",
  "published" : "2023-08-16T15:30:18Z",
  "aliases" : [ "CVE-2023-40349" ],
  "summary" : "Jenkins Gogs Plugin vulnerable to unsafe default behavior and information disclosure",
  "details" : "Jenkins Gogs Plugin provides a webhook endpoint at /gogs-webhook that can be used to trigger builds of jobs. In Gogs Plugin 1.0.15 and earlier, an option to specify a Gogs secret for this webhook is provided, but not enabled by default.\n\nThis allows unauthenticated attackers to trigger builds of jobs corresponding to the attacker-specified job name.\n\nAdditionally, the output of the webhook endpoint includes whether a job corresponding to the attacker-specified job name exists, even if the attacker has no permission to access it.\n\nAs of publication of this advisory, there is no fix.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:gogs-webhook"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.15"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-40349"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-2894"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2023/08/16/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-665" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-16T21:04:57Z",
    "nvd_published_at" : "2023-08-16T15:15:12Z"
  }
}