CVE-2023-41646: Buttercup Buttercup Allows Attackers To Obtain Vulnerability

MODERATE
Advisory Identifier: GHSA-7cwq-p8cr-h9qg
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CVSS 5.3
CWE-916
Published
Advisory Summary

CVE-2023-41646 is a MODERATE (CVSS 5.3) buttercup allows attackers to obtain vulnerability (CWE-916: Use of Password Hash With Insufficient Computational Effort) affecting Buttercup libraries in the npm ecosystem. The issue involves buttercup allows attackers to obtain the hash of the master password. Remediation is available by upgrading affected packages to version 7.4.0.

CVE-2023-41646 at a Glance

CVE Identifier CVE-2023-41646
GHSA Identifier GHSA-7cwq-p8cr-h9qg
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-916: Use of Password Hash With Insufficient Computational Effort
Affected Product Buttercup
Package Ecosystem npm
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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-41646

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

buttercup fixed: 7.4.0 
npm install buttercup@7.4.0
Verify Direct and Transitive Dependencies

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

npm ls buttercup

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-41646, inspect your project dependencies using npm:

npm ls buttercup

Analyze the terminal output to locate any version of Buttercup in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.4.0), your application is affected.

Note: The npm ls buttercup command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-916: Use of Password Hash With Insufficient Computational Effort, where the product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive. In Buttercup, 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

Buttercup allows attackers to obtain the hash of the master password for the password manager via accessing the file /vaults.json/. This affects the Buttercup app up to version 2.20.3.

CVE-2023-41646 Affected Buttercup Versions

1 component(s)
Fixed Versions:
7.4.0
Product / Package Ecosystem Affected Versions Fixed Version
buttercup
npm/buttercup
npm
≥ 2.20.3
< 7.4.0
7.4.0

References

NVD — CVE-2023-41646 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-41646
Buttercup Source Repository REPOSITORY
https://github.com/buttercup/buttercup-core/issues/336
Security Fix Commit FIX COMMIT
https://github.com/buttercup/buttercup-core/commit/77fbcdfe4caf57486a3c83c07fc6d36bb0e1d3e1
Buttercup Security Information SECURITY
https://buttercup.pw
Buttercup Source Repository REPOSITORY
https://github.com/buttercup/buttercup-core
Buttercup Source Repository REPOSITORY
https://github.com/tristao-marinho/CVE-2023-41646

Frequently Asked Questions

What is CVE-2023-41646?
CVE-2023-41646 is a security vulnerability in Buttercup involving Buttercup allows attackers to obtain the hash of the master password under CWE-916: Use of Password Hash With Insufficient Computational Effort.
Which Buttercup versions are affected?
Affected versions include releases prior to 7.4.0 across affected packages: buttercup.
What version fixes CVE-2023-41646?
Upgrading to 7.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is buttercup affected?
Yes, buttercup is affected in releases prior to 7.4.0. Upgrade your dependency to 7.4.0 or later.
What is the CVSS score of CVE-2023-41646?
CVE-2023-41646 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:L/I:N/A:N.
What CWE is associated with CVE-2023-41646?
CVE-2023-41646 is classified under CWE-916: Use of Password Hash With Insufficient Computational Effort (The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive.).
How can I check npm dependencies for CVE-2023-41646?
Run the dependency tree command: 'npm ls buttercup'. 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-7cwq-p8cr-h9qg",
  "modified" : "2023-12-13T23:22:06Z",
  "published" : "2023-09-08T00:31:02Z",
  "aliases" : [ "CVE-2023-41646" ],
  "summary" : "Buttercup allows attackers to obtain the hash of the master password",
  "details" : "Buttercup allows attackers to obtain the hash of the master password for the password manager via accessing the file /vaults.json/.\n\nThis affects the Buttercup app up to version 2.20.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "buttercup"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.20.3"
      }, {
        "fixed" : "7.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-41646"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/buttercup/buttercup-core/issues/336"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/buttercup/buttercup-core/commit/77fbcdfe4caf57486a3c83c07fc6d36bb0e1d3e1"
  }, {
    "type" : "WEB",
    "url" : "https://buttercup.pw"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/buttercup/buttercup-core"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/tristao-marinho/CVE-2023-41646"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-916" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-13T23:22:06Z",
    "nvd_published_at" : "2023-09-07T22:15:07Z"
  }
}