CVE-2020-2288: Audit trail Incorrect Default Pattern Vulnerability

MODERATE
Advisory Identifier: GHSA-7v9p-34r2-q668
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CVSS 5.3
CWE-185
Published
Advisory Summary

CVE-2020-2288 is a MODERATE (CVSS 5.3) incorrect default pattern vulnerability (CWE-185: Incorrect Regular Expression) affecting Audit trail libraries in the Maven ecosystem. The issue involves incorrect default pattern in jenkins audit trail plugin. Remediation is available by upgrading affected packages to version 3.7.

CVE-2020-2288 at a Glance

CVE Identifier CVE-2020-2288
GHSA Identifier GHSA-7v9p-34r2-q668
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-185: Incorrect Regular Expression
Affected Product Audit trail
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:N/S:U/C:N/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 None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-2288

To remediate this vulnerability, upgrade all affected Audit trail 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:audit-trail fixed: 3.7 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>audit-trail</artifactId>
    <version>3.7</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-2020-2288, 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 Audit trail in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.7), 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-185: Incorrect Regular Expression, where the product specifies a regular expression in a way that causes data to be improperly matched or compared. In Audit trail, 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 Audit Trail Plugin uses regular expressions to match requested URLs whose dispatch should be logged. In Jenkins Audit Trail Plugin 3.6 and earlier, the default regular expression pattern could be bypassed in many cases by adding a suffix to the URL that would be ignored during request handling. Jenkins Audit Trail Plugin 3.7 changes the default regular expression pattern so that it allows for arbitrary suffixes. It automatically will replace previous default patterns with the new, more complete default pattern. Additionally, an administrative monitor is shown if a user-specified pattern is found to be bypassable through crafted URLs and form validation was improved to recognize patterns that would not match requests with arbitrary suffixes.

CVE-2020-2288 Affected Audit trail Versions

1 component(s)
Fixed Versions:
3.7
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:audit-trail
maven/org.jenkins-ci.plugins/audit-trail
Maven
< 3.7
3.7

References

NVD — CVE-2020-2288 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2288
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/audit-trail-plugin/commit/43433147bec001f13536534d3d282ce3c28b26be
Audit trail Source Repository REPOSITORY
https://github.com/jenkinsci/audit-trail-plugin
Audit trail Security Information SECURITY
https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1846
Audit trail Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/10/08/5

Frequently Asked Questions

What is CVE-2020-2288?
CVE-2020-2288 is a security vulnerability in Audit trail involving Incorrect default pattern in Jenkins Audit Trail Plugin under CWE-185: Incorrect Regular Expression.
Which Audit trail versions are affected?
Affected versions include releases prior to 3.7 across affected packages: org.jenkins-ci.plugins:audit-trail.
What version fixes CVE-2020-2288?
Upgrading to 3.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is audit-trail affected?
Yes, org.jenkins-ci.plugins:audit-trail is affected in releases prior to 3.7. Upgrade your dependency to 3.7 or later.
What is the CVSS score of CVE-2020-2288?
CVE-2020-2288 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2020-2288?
CVE-2020-2288 is classified under CWE-185: Incorrect Regular Expression (The product specifies a regular expression in a way that causes data to be improperly matched or compared.).
How can I check Maven dependencies for CVE-2020-2288?
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-7v9p-34r2-q668",
  "modified" : "2023-10-27T11:36:00Z",
  "published" : "2022-05-24T17:30:18Z",
  "aliases" : [ "CVE-2020-2288" ],
  "summary" : "Incorrect default pattern in Jenkins Audit Trail Plugin",
  "details" : "Jenkins Audit Trail Plugin uses regular expressions to match requested URLs whose dispatch should be logged.\n\nIn Jenkins Audit Trail Plugin 3.6 and earlier, the default regular expression pattern could be bypassed in many cases by adding a suffix to the URL that would be ignored during request handling.\n\nJenkins Audit Trail Plugin 3.7 changes the default regular expression pattern so that it allows for arbitrary suffixes. It automatically will replace previous default patterns with the new, more complete default pattern.\n\nAdditionally, an administrative monitor is shown if a user-specified pattern is found to be bypassable through crafted URLs and form validation was improved to recognize patterns that would not match requests with arbitrary suffixes.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:audit-trail"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2288"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/audit-trail-plugin/commit/43433147bec001f13536534d3d282ce3c28b26be"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/audit-trail-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1846"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/10/08/5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-185" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-21T16:49:28Z",
    "nvd_published_at" : "2020-10-08T13:15:00Z"
  }
}