CVE-2017-1000085: Subversion Jenkins Subversion Plugin Cross-Site Request Vulnerability

MODERATE
Advisory Identifier: GHSA-hrwc-pqfm-g6qf
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CVSS 6.5
CWE-352
Published
Advisory Summary

CVE-2017-1000085 is a MODERATE (CVSS 6.5) jenkins subversion plugin cross-site request vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Subversion libraries in the Maven ecosystem. The issue involves jenkins subversion plugin cross-site request forgery vulnerability. Remediation is available by upgrading affected packages to version 2.9.

CVE-2017-1000085 at a Glance

CVE Identifier CVE-2017-1000085
GHSA Identifier GHSA-hrwc-pqfm-g6qf
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Subversion
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2017-1000085

To remediate this vulnerability, upgrade all affected Subversion 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:subversion fixed: 2.9 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>subversion</artifactId>
    <version>2.9</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-2017-1000085, 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 Subversion in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.9), 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-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 Subversion, 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

Subversion Plugin connects to a user-specified Subversion repository as part of form validation (e.g. to retrieve a list of tags). This functionality improperly checked permissions, allowing any user with Item/Build permission (but not Item/Configure) to connect to any web server or Subversion server and send credentials with a known ID, thereby possibly capturing them. Additionally, this functionality did not require POST requests be used, thereby allowing the above to be performed without direct access to Jenkins via Cross-Site Request Forgery attacks. As of version 2.9, this functionality properly checks permissions and is only available via POST.

CVE-2017-1000085 Affected Subversion Versions

1 component(s)
Fixed Versions:
2.9
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:subversion
maven/org.jenkins-ci.plugins/subversion
Maven
< 2.9
2.9

References

NVD — CVE-2017-1000085 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000085
Subversion Source Repository REPOSITORY
https://github.com/jenkinsci/subversion-plugin
Subversion Security Information SECURITY
https://jenkins.io/security/advisory/2017-07-10
Subversion Security Information SECURITY
https://web.archive.org/web/20171119065136/http://www.securityfocus.com/bid/99574

Frequently Asked Questions

What is CVE-2017-1000085?
CVE-2017-1000085 is a security vulnerability in Subversion involving Jenkins Subversion Plugin Cross-Site Request Forgery vulnerability under CWE-352: Cross-Site Request Forgery (CSRF).
Which Subversion versions are affected?
Affected versions include releases prior to 2.9 across affected packages: org.jenkins-ci.plugins:subversion.
What version fixes CVE-2017-1000085?
Upgrading to 2.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is subversion affected?
Yes, org.jenkins-ci.plugins:subversion is affected in releases prior to 2.9. Upgrade your dependency to 2.9 or later.
What is the CVSS score of CVE-2017-1000085?
CVE-2017-1000085 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2017-1000085?
CVE-2017-1000085 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-2017-1000085?
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-hrwc-pqfm-g6qf",
  "modified" : "2022-12-12T19:10:15Z",
  "published" : "2022-05-17T00:29:00Z",
  "aliases" : [ "CVE-2017-1000085" ],
  "summary" : "Jenkins Subversion Plugin Cross-Site Request Forgery vulnerability",
  "details" : "Subversion Plugin connects to a user-specified Subversion repository as part of form validation (e.g. to retrieve a list of tags). This functionality improperly checked permissions, allowing any user with Item/Build permission (but not Item/Configure) to connect to any web server or Subversion server and send credentials with a known ID, thereby possibly capturing them. Additionally, this functionality did not require POST requests be used, thereby allowing the above to be performed without direct access to Jenkins via Cross-Site Request Forgery attacks. As of version 2.9, this functionality properly checks permissions and is only available via POST.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:subversion"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-1000085"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/subversion-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2017-07-10"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20171119065136/http://www.securityfocus.com/bid/99574"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-12T19:10:15Z",
    "nvd_published_at" : "2017-10-05T01:29:00Z"
  }
}