CVE-2023-40341: Blueocean Jenkins Blue Ocean Plugin Cross-site Vulnerability

MODERATE
Advisory Identifier: GHSA-g4pq-p927-7pgg
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CVSS 5.4
CWE-352
Published
Advisory Summary

CVE-2023-40341 is a MODERATE (CVSS 5.4) jenkins blue ocean plugin cross-site vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Blueocean libraries in the Maven ecosystem. The issue involves jenkins blue ocean plugin cross-site request forgery vulnerability. Remediation is available by upgrading affected packages to version 1.27.5.1.

CVE-2023-40341 at a Glance

CVE Identifier CVE-2023-40341
GHSA Identifier GHSA-g4pq-p927-7pgg
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Blueocean
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

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:R/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 Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2023-40341

To remediate this vulnerability, upgrade all affected Blueocean dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

io.jenkins.blueocean:blueocean fixed: 1.27.5.1 
<dependency>
    <groupId>io.jenkins.blueocean</groupId>
    <artifactId>blueocean</artifactId>
    <version>1.27.5.1</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=io.jenkins.blueocean

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-40341, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=io.jenkins.blueocean

Analyze the terminal output to locate any version of Blueocean in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.27.5.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=io.jenkins.blueocean 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-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Blueocean, 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 Blue Ocean Plugin 1.27.5 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability. This vulnerability allows attackers to connect to an attacker-specified URL, capturing GitHub credentials associated with an attacker-specified job. This issue is due to an incomplete fix of SECURITY-2502. Blue Ocean Plugin 1.27.5.1 uses the configured SCM URL, instead of a user-specified URL provided as a parameter to the HTTP endpoint.

CVE-2023-40341 Affected Blueocean Versions

1 component(s)
Fixed Versions:
1.27.5.1
Product / Package Ecosystem Affected Versions Fixed Version
io.jenkins.blueocean:blueocean
maven/io.jenkins.blueocean/blueocean
Maven
< 1.27.5.1
1.27.5.1

References

NVD — CVE-2023-40341 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40341
Blueocean Security Information SECURITY
https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3116
Blueocean Security Information SECURITY
http://www.openwall.com/lists/oss-security/2023/08/16/3

Frequently Asked Questions

What is CVE-2023-40341?
CVE-2023-40341 is a security vulnerability in Blueocean involving Jenkins Blue Ocean Plugin cross-site request forgery vulnerability under CWE-352: Cross-Site Request Forgery (CSRF).
Which Blueocean versions are affected?
Affected versions include releases prior to 1.27.5.1 across affected packages: io.jenkins.blueocean:blueocean.
What version fixes CVE-2023-40341?
Upgrading to 1.27.5.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is blueocean affected?
Yes, io.jenkins.blueocean:blueocean is affected in releases prior to 1.27.5.1. Upgrade your dependency to 1.27.5.1 or later.
What is the CVSS score of CVE-2023-40341?
CVE-2023-40341 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2023-40341?
CVE-2023-40341 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check Maven dependencies for CVE-2023-40341?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=io.jenkins.blueocean'. 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-g4pq-p927-7pgg",
  "modified" : "2023-08-16T21:08:50Z",
  "published" : "2023-08-16T15:30:18Z",
  "aliases" : [ "CVE-2023-40341" ],
  "summary" : "Jenkins Blue Ocean Plugin cross-site request forgery vulnerability",
  "details" : "Jenkins Blue Ocean Plugin 1.27.5 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability.\n\nThis vulnerability allows attackers to connect to an attacker-specified URL, capturing GitHub credentials associated with an attacker-specified job.\n\nThis issue is due to an incomplete fix of SECURITY-2502.\n\nBlue Ocean Plugin 1.27.5.1 uses the configured SCM URL, instead of a user-specified URL provided as a parameter to the HTTP endpoint.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.jenkins.blueocean:blueocean"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.27.5.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-40341"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3116"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2023/08/16/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-16T21:08:50Z",
    "nvd_published_at" : "2023-08-16T15:15:11Z"
  }
}