CVE-2019-1020002: Pterodactyl/panel Pterodactyl Vulnerable To 2FA Sniffing Vulnerability

HIGH
Advisory Identifier: GHSA-fg52-xjfc-9rh8
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CVSS 7.5
CWE-203
Published
Advisory Summary

CVE-2019-1020002 is a HIGH (CVSS 7.5) pterodactyl vulnerable to 2fa sniffing vulnerability (CWE-203: Observable Discrepancy) affecting Pterodactyl/panel libraries in the Packagist ecosystem. The issue involves pterodactyl vulnerable to 2fa sniffing. Remediation is available by upgrading affected packages to version 0.7.14.

CVE-2019-1020002 at a Glance

CVE Identifier CVE-2019-1020002
GHSA Identifier GHSA-fg52-xjfc-9rh8
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-203: Observable Discrepancy
Affected Product Pterodactyl/panel
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2019-1020002

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

pterodactyl/panel fixed: 0.7.14 
Upgrade pterodactyl/panel to 0.7.14
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 pterodactyl/panel

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-1020002, inspect your project dependencies for Pterodactyl/panel:

inspect dependencies for pterodactyl/panel

Analyze the terminal output to locate any version of Pterodactyl/panel in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.14), 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-203: Observable Discrepancy, where the product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor. In Pterodactyl/panel, 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

**Pterodactyl version 0.7.13 and lower - 2FA Sniffing** Users who have enabled 2FA protections on their account can unintentionally have their account's existence sniffed by malicious users who enter random credentials into the login fields. ### Impact Users who have enabled 2FA protections on their account can unintentionally have their account's existence sniffed by malicious users who enter random credentials into the login fields. A logical mistake was made when the original code was written that would wait to verify the user's password until they had provided 2FA credentials if it was enabled on their account. However, because of this you could enter a bad password for a known email and determine if the account exists if you got redirected to a 2FA page. ### For more information If you have any questions or comments about this advisory please react out on Discord or email dane@[project name].io.

CVE-2019-1020002 Affected Pterodactyl/panel Versions

1 component(s)
Fixed Versions:
0.7.14
Product / Package Ecosystem Affected Versions Fixed Version
pterodactyl/panel
 Packagist
< 0.7.14
0.7.14

References

GitHub Advisory / Wiki ADVISORY
https://github.com/pterodactyl/panel/security/advisories/GHSA-vcm9-hx3q-qwj8
NVD — CVE-2019-1020002 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1020002
Security Fix Commit FIX COMMIT
https://github.com/pterodactyl/panel/commit/092e7e79fff858ee026608c7dbccab165a67526f
Pterodactyl/panel Source Repository REPOSITORY
https://github.com/pterodactyl/panel
Pterodactyl/panel Release RELEASE
https://github.com/pterodactyl/panel/releases/tag/v0.7.14

Frequently Asked Questions

What is CVE-2019-1020002?
CVE-2019-1020002 is a security vulnerability in Pterodactyl/panel involving Pterodactyl vulnerable to 2FA Sniffing under CWE-203: Observable Discrepancy.
Which Pterodactyl/panel versions are affected?
Affected versions include releases prior to 0.7.14 across affected packages: pterodactyl/panel.
What version fixes CVE-2019-1020002?
Upgrading to 0.7.14 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pterodactyl/panel affected?
Yes, pterodactyl/panel is affected in releases prior to 0.7.14. Upgrade your dependency to 0.7.14 or later.
What is the CVSS score of CVE-2019-1020002?
CVE-2019-1020002 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2019-1020002?
CVE-2019-1020002 is classified under CWE-203: Observable Discrepancy (The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.).
How can I check Packagist dependencies for CVE-2019-1020002?
Run the dependency tree command: 'inspect dependencies for pterodactyl/panel'. 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-fg52-xjfc-9rh8",
  "modified" : "2022-12-16T14:34:49Z",
  "published" : "2022-05-24T16:51:37Z",
  "aliases" : [ "CVE-2019-1020002" ],
  "summary" : "Pterodactyl vulnerable to 2FA Sniffing",
  "details" : "**Pterodactyl version 0.7.13 and lower - 2FA Sniffing**\n\nUsers who have enabled 2FA protections on their account can unintentionally have their account's existence sniffed by malicious users who enter random credentials into the login fields.\n\n### Impact\nUsers who have enabled 2FA protections on their account can unintentionally have their account's existence sniffed by malicious users who enter random credentials into the login fields.\n\nA logical mistake was made when the original code was written that would wait to verify the user's password until they had provided 2FA credentials if it was enabled on their account. However, because of this you could enter a bad password for a known email and determine if the account exists if you got redirected to a 2FA page.\n\n### For more information\nIf you have any questions or comments about this advisory please react out on Discord or email dane@[project name].io.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "pterodactyl/panel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.7.14"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.7.13"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/pterodactyl/panel/security/advisories/GHSA-vcm9-hx3q-qwj8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1020002"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pterodactyl/panel/commit/092e7e79fff858ee026608c7dbccab165a67526f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pterodactyl/panel"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pterodactyl/panel/releases/tag/v0.7.14"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-203" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-16T14:34:49Z",
    "nvd_published_at" : "2019-07-29T15:15:00Z"
  }
}