CVE-2020-15231: Print lib Cross-Site Scripting Vulnerability

LOW
Advisory Identifier: GHSA-w534-q4xf-h5v2
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CVSS 9.3
CWE-79
Published
Advisory Summary

CVE-2020-15231 is a LOW (CVSS 9.3) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Print lib libraries in the Maven ecosystem. The issue involves xss in mapfish print relating to jsonp support. Remediation is available by upgrading affected packages to version 3.24.

CVE-2020-15231 at a Glance

CVE Identifier CVE-2020-15231
GHSA Identifier GHSA-w534-q4xf-h5v2
Severity LOW
CVSS v3.1 Base Score 9.3
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Print lib
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

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:C/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2020-15231

To remediate this vulnerability, upgrade all affected Print lib 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.mapfish.print:print-lib fixed: 3.24 
<dependency>
    <groupId>org.mapfish.print</groupId>
    <artifactId>print-lib</artifactId>
    <version>3.24</version>
</dependency>
org.mapfish.print:print-servlet fixed: 3.24 
<dependency>
    <groupId>org.mapfish.print</groupId>
    <artifactId>print-servlet</artifactId>
    <version>3.24</version>
</dependency>
org.mapfish.print:print-standalone fixed: 3.24 
<dependency>
    <groupId>org.mapfish.print</groupId>
    <artifactId>print-standalone</artifactId>
    <version>3.24</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.mapfish.print

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-15231, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.mapfish.print

Analyze the terminal output to locate any version of Print lib in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.24), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.mapfish.print 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Print lib, 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

### Impact A user can use the JSONP support to do a Cross-site scripting. ### Patches Use version >= 3.24 ### Workarounds No ### References * https://github.com/mapfish/mapfish-print/pull/1397/commits/89155f2506b9cee822e15ce60ccae390a1419d5e * https://cwe.mitre.org/data/definitions/79.html ### For more information If you have any questions or comments about this advisory Comment the pull request: https://github.com/mapfish/mapfish-print/pull/1397

CVE-2020-15231 Affected Print lib Versions

3 component(s)
Fixed Versions:
3.24
Product / Package Ecosystem Affected Versions Fixed Version
org.mapfish.print:print-lib
maven/org.mapfish.print/print-lib
Maven
< 3.24
3.24
org.mapfish.print:print-servlet
maven/org.mapfish.print/print-servlet
Maven
< 3.24
3.24
org.mapfish.print:print-standalone
maven/org.mapfish.print/print-standalone
Maven
< 3.24
3.24

References

GitHub Advisory / Wiki ADVISORY
https://github.com/mapfish/mapfish-print/security/advisories/GHSA-w534-q4xf-h5v2
NVD — CVE-2020-15231 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15231
Print lib Source Repository REPOSITORY
https://github.com/mapfish/mapfish-print/pull/1397/commits/89155f2506b9cee822e15ce60ccae390a1419d5e

Frequently Asked Questions

What is CVE-2020-15231?
CVE-2020-15231 is a security vulnerability in Print lib involving XSS in Mapfish Print relating to JSONP support under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Print lib versions are affected?
Affected versions include releases prior to 3.24 across affected packages: org.mapfish.print:print-lib, org.mapfish.print:print-servlet, org.mapfish.print:print-standalone.
What version fixes CVE-2020-15231?
Upgrading to 3.24 (or the latest patched release for your respective branch) resolves the vulnerability.
Is print-lib affected?
Yes, org.mapfish.print:print-lib is affected in releases prior to 3.24. Upgrade your dependency to 3.24 or later.
Is print-servlet affected?
Yes, org.mapfish.print:print-servlet is affected in releases prior to 3.24. Upgrade your dependency to 3.24 or later.
What is the CVSS score of CVE-2020-15231?
CVE-2020-15231 has a CVSS v3.1 base score of 9.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2020-15231?
CVE-2020-15231 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2020-15231?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.mapfish.print'. 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-w534-q4xf-h5v2",
  "modified" : "2021-01-07T23:47:26Z",
  "published" : "2020-07-07T16:32:49Z",
  "aliases" : [ "CVE-2020-15231" ],
  "summary" : "XSS in Mapfish Print relating to JSONP support",
  "details" : "### Impact\nA user can use the JSONP support to do a Cross-site scripting.\n\n### Patches\nUse version >= 3.24\n\n### Workarounds\nNo\n\n### References\n* https://github.com/mapfish/mapfish-print/pull/1397/commits/89155f2506b9cee822e15ce60ccae390a1419d5e\n* https://cwe.mitre.org/data/definitions/79.html\n\n### For more information\nIf you have any questions or comments about this advisory Comment the pull request: https://github.com/mapfish/mapfish-print/pull/1397",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.mapfish.print:print-lib"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.24"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.mapfish.print:print-servlet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.24"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.mapfish.print:print-standalone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.24"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mapfish/mapfish-print/security/advisories/GHSA-w534-q4xf-h5v2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-15231"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mapfish/mapfish-print/pull/1397/commits/89155f2506b9cee822e15ce60ccae390a1419d5e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-07-07T16:31:25Z",
    "nvd_published_at" : null
  }
}