CVE-2019-14671: Grumpydictator/firefly iii Improper Input Validation Vulnerability

LOW
Advisory Identifier: GHSA-jjcx-999m-35hc
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CVSS 3.3
CWE-20
Published
Advisory Summary

CVE-2019-14671 is a LOW (CVSS 3.3) improper input validation vulnerability (CWE-20: Improper Input Validation) affecting Grumpydictator/firefly iii libraries in the Packagist ecosystem. The issue involves improper input validation in firefly iii. Remediation is available by upgrading affected packages to version 4.7.17.4.

CVE-2019-14671 at a Glance

CVE Identifier CVE-2019-14671
GHSA Identifier GHSA-jjcx-999m-35hc
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-20: Improper Input Validation
Affected Product Grumpydictator/firefly iii
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.3

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

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

How to Fix CVE-2019-14671

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

grumpydictator/firefly-iii fixed: 4.7.17.4 
Upgrade grumpydictator/firefly-iii to 4.7.17.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for grumpydictator/firefly-iii

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-14671, inspect your project dependencies for Grumpydictator/firefly iii:

inspect dependencies for grumpydictator/firefly-iii

Analyze the terminal output to locate any version of Grumpydictator/firefly iii in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.7.17.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Grumpydictator/firefly iii, 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

Firefly III 4.7.17.3 is vulnerable to local file enumeration. An attacker can enumerate local files due to the lack of protocol scheme sanitization, such as for file:/// URLs. This is related to fints_url to import/job/configuration, and import/create/fints.

CVE-2019-14671 Affected Grumpydictator/firefly iii Versions

1 component(s)
Fixed Versions:
4.7.17.4
Product / Package Ecosystem Affected Versions Fixed Version
grumpydictator/firefly-iii
 Packagist
< 4.7.17.4
4.7.17.4

References

NVD — CVE-2019-14671 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14671
Grumpydictator/firefly iii Source Repository REPOSITORY
https://github.com/firefly-iii/firefly-iii/issues/2367
Security Fix Commit FIX COMMIT
https://github.com/firefly-iii/firefly-iii/commit/e80d616ef4397e6e764f6b7b7a5b30121244933c

Frequently Asked Questions

What is CVE-2019-14671?
CVE-2019-14671 is a security vulnerability in Grumpydictator/firefly iii involving Improper Input Validation in Firefly III under CWE-20: Improper Input Validation.
Which Grumpydictator/firefly iii versions are affected?
Affected versions include releases prior to 4.7.17.4 across affected packages: grumpydictator/firefly-iii.
What version fixes CVE-2019-14671?
Upgrading to 4.7.17.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is grumpydictator/firefly-iii affected?
Yes, grumpydictator/firefly-iii is affected in releases prior to 4.7.17.4. Upgrade your dependency to 4.7.17.4 or later.
What is the CVSS score of CVE-2019-14671?
CVE-2019-14671 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2019-14671?
CVE-2019-14671 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Packagist dependencies for CVE-2019-14671?
Run the dependency tree command: 'inspect dependencies for grumpydictator/firefly-iii'. 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-jjcx-999m-35hc",
  "modified" : "2021-07-22T21:50:38Z",
  "published" : "2021-09-08T17:27:07Z",
  "aliases" : [ "CVE-2019-14671" ],
  "summary" : "Improper Input Validation in Firefly III",
  "details" : "Firefly III 4.7.17.3 is vulnerable to local file enumeration. An attacker can enumerate local files due to the lack of protocol scheme sanitization, such as for file:/// URLs. This is related to fints_url to import/job/configuration, and import/create/fints.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "grumpydictator/firefly-iii"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.7.17.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.7.17.3"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-14671"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/firefly-iii/firefly-iii/issues/2367"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/firefly-iii/firefly-iii/commit/e80d616ef4397e6e764f6b7b7a5b30121244933c"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-07-22T21:50:38Z",
    "nvd_published_at" : "2019-08-05T20:15:00Z"
  }
}