CVE-2019-8133: Magento/community edition Bypass Of Sitemp Access Restrictions Vulnerability

MODERATE
Advisory Identifier: GHSA-62fx-3v4f-mwxm
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CVSS 6.5
Published
Advisory Summary

CVE-2019-8133 is a MODERATE (CVSS 6.5) bypass of sitemp access restrictions vulnerability (General Security Weakness) affecting Magento/community edition libraries in the Packagist ecosystem. The issue involves bypass of sitemp access restrictions. Remediation is available by upgrading affected packages to version 2.2.10, 2.3.2-p2.

CVE-2019-8133 at a Glance

CVE Identifier CVE-2019-8133
GHSA Identifier GHSA-62fx-3v4f-mwxm
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification General Security Weakness
Affected Product Magento/community edition
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

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

How to Fix CVE-2019-8133

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

magento/community-edition fixed: 2.2.10 
Upgrade magento/community-edition to 2.2.10
magento/community-edition fixed: 2.3.2-p2 
Upgrade magento/community-edition to 2.3.2-p2
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 magento/community-edition

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-8133, inspect your project dependencies for Magento/community edition:

inspect dependencies for magento/community-edition

Analyze the terminal output to locate any version of Magento/community edition in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.10), 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 General Security Weakness. In Magento/community edition, 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

A security bypass vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. A user with privileges to generate sitemaps can bypass configuration that restricts directory access. The bypass allows overwrite of a subset of configuration files which can lead to denial of service. As per [the Magento Release 2.3.3](https://web.archive.org/web/20201126132230/https://devdocs.magento.com/guides/v2.3/release-notes/release-notes-2-3-3-commerce.html#new-security-only-patch-available), if you have already implemented the pre-release version of this patch (2.3.2-p1), it is highly recommended to promptly upgrade to 2.3.2-p2.

CVE-2019-8133 Affected Magento/community edition Versions

2 component(s)
Fixed Versions:
2.2.102.3.2-p2
Product / Package Ecosystem Affected Versions Fixed Version
magento/community-edition
 Packagist
≥ 2.2
< 2.2.10
2.2.10
magento/community-edition
 Packagist
≥ 2.3
< 2.3.2-p2
2.3.2-p2

References

NVD — CVE-2019-8133 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-8133
Magento/community edition Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8133.yaml
Magento/community edition Security Information SECURITY
https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update

Frequently Asked Questions

What is CVE-2019-8133?
CVE-2019-8133 is a security vulnerability in Magento/community edition involving Bypass of sitemp access restrictions under General Security Weakness.
Which Magento/community edition versions are affected?
Affected versions include releases prior to 2.2.10, 2.3.2-p2 across affected packages: magento/community-edition.
What version fixes CVE-2019-8133?
Upgrading to 2.2.10, 2.3.2-p2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is magento/community-edition affected?
Yes, magento/community-edition is affected in releases prior to 2.2.10, 2.3.2-p2. Upgrade your dependency to 2.2.10, 2.3.2-p2 or later.
What is the CVSS score of CVE-2019-8133?
CVE-2019-8133 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2019-8133?
CVE-2019-8133 is classified under General Security Weakness.
How can I check Packagist dependencies for CVE-2019-8133?
Run the dependency tree command: 'inspect dependencies for magento/community-edition'. 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-62fx-3v4f-mwxm",
  "modified" : "2024-02-12T11:58:51Z",
  "published" : "2019-11-12T22:59:40Z",
  "aliases" : [ "CVE-2019-8133" ],
  "summary" : "Bypass of sitemp access restrictions",
  "details" : "A security bypass vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. A user with privileges to generate sitemaps can bypass configuration that restricts directory access. The bypass allows overwrite of a subset of configuration files which can lead to denial of service.\n\nAs per [the Magento Release 2.3.3](https://web.archive.org/web/20201126132230/https://devdocs.magento.com/guides/v2.3/release-notes/release-notes-2-3-3-commerce.html#new-security-only-patch-available), if you have already implemented the pre-release version of this patch (2.3.2-p1), it is highly recommended to promptly upgrade to 2.3.2-p2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2"
      }, {
        "fixed" : "2.2.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.3"
      }, {
        "fixed" : "2.3.2-p2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-8133"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8133.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-11-12T22:13:08Z",
    "nvd_published_at" : null
  }
}