CVE-2019-1010260: Ktlint core Ktlint-core Vulnerability

HIGH
Advisory Identifier: GHSA-r8h9-hq9c-2p5c
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CVSS 8.1
CWE-319
Published
Advisory Summary

CVE-2019-1010260 is a HIGH (CVSS 8.1) ktlint-core vulnerability (CWE-319: Cleartext Transmission of Sensitive Information) affecting Ktlint core libraries in the Maven ecosystem. The issue involves ktlint-core. Remediation is available by upgrading affected packages to version 0.30.0.

CVE-2019-1010260 at a Glance

CVE Identifier CVE-2019-1010260
GHSA Identifier GHSA-r8h9-hq9c-2p5c
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-319: Cleartext Transmission of Sensitive Information
Affected Product Ktlint core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

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

How to Fix CVE-2019-1010260

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

com.github.shyiko.ktlint:ktlint-core fixed: 0.30.0 
<dependency>
    <groupId>com.github.shyiko.ktlint</groupId>
    <artifactId>ktlint-core</artifactId>
    <version>0.30.0</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=com.github.shyiko.ktlint

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-1010260, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.github.shyiko.ktlint

Analyze the terminal output to locate any version of Ktlint core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.30.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.github.shyiko.ktlint 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-319: Cleartext Transmission of Sensitive Information, where the product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. In Ktlint core, 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

Using ktlint to download and execute custom rulesets can result in arbitrary code execution as the served jars can be compromised by a MITM. This attack is exploitable via Man in the Middle of the HTTP connection to the artifact servers. This vulnerability appears to have been fixed in 0.30.0 and later; after commit 5e547b287d6c260d328a2cb658dbe6b7a7ff2261.

CVE-2019-1010260 Affected Ktlint core Versions

1 component(s)
Fixed Versions:
0.30.0
Product / Package Ecosystem Affected Versions Fixed Version
com.github.shyiko.ktlint:ktlint-core
maven/com.github.shyiko.ktlint/ktlint-core
Maven
< 0.30.0
0.30.0

References

NVD — CVE-2019-1010260 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1010260
Ktlint core Source Repository REPOSITORY
https://github.com/shyiko/ktlint/pull/332
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-r8h9-hq9c-2p5c
Ktlint core Source Repository REPOSITORY
https://github.com/shyiko/ktlint

Frequently Asked Questions

What is CVE-2019-1010260?
CVE-2019-1010260 is a security vulnerability in Ktlint core involving ktlint-core under CWE-319: Cleartext Transmission of Sensitive Information.
Which Ktlint core versions are affected?
Affected versions include releases prior to 0.30.0 across affected packages: com.github.shyiko.ktlint:ktlint-core.
What version fixes CVE-2019-1010260?
Upgrading to 0.30.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ktlint-core affected?
Yes, com.github.shyiko.ktlint:ktlint-core is affected in releases prior to 0.30.0. Upgrade your dependency to 0.30.0 or later.
What is the CVSS score of CVE-2019-1010260?
CVE-2019-1010260 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-1010260?
CVE-2019-1010260 is classified under CWE-319: Cleartext Transmission of Sensitive Information (The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.).
How can I check Maven dependencies for CVE-2019-1010260?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.github.shyiko.ktlint'. 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-r8h9-hq9c-2p5c",
  "modified" : "2021-09-17T14:43:23Z",
  "published" : "2019-04-08T15:18:54Z",
  "aliases" : [ "CVE-2019-1010260" ],
  "summary" : "High severity vulnerability that affects com.github.shyiko.ktlint:ktlint-core",
  "details" : "Using ktlint to download and execute custom rulesets can result in arbitrary code execution as the served jars can be compromised by a MITM. This attack is exploitable via Man in the Middle of the HTTP connection to the artifact servers. This vulnerability appears to have been fixed in 0.30.0 and later; after commit 5e547b287d6c260d328a2cb658dbe6b7a7ff2261.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.github.shyiko.ktlint:ktlint-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.30.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1010260"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/shyiko/ktlint/pull/332"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-r8h9-hq9c-2p5c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shyiko/ktlint"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-319" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:54:05Z",
    "nvd_published_at" : null
  }
}