CVE-2020-15151: Openmage/magento lts Observable Timing Discrepancy Vulnerability

HIGH
Advisory Identifier: GHSA-crf2-xm6x-46p6
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CVSS 8.0
CWE-203 CWE-352
Published
Advisory Summary

CVE-2020-15151 is a HIGH (CVSS 8.0) observable timing discrepancy vulnerability (CWE-203: Observable Discrepancy) affecting Openmage/magento lts libraries in the Packagist ecosystem. The issue involves observable timing discrepancy in openmage lts. Remediation is available by upgrading affected packages to version 19.4.6, 20.0.2.

CVE-2020-15151 at a Glance

CVE Identifier CVE-2020-15151
GHSA Identifier GHSA-crf2-xm6x-46p6
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-203: Observable Discrepancy
Affected Product Openmage/magento lts
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.0

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

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

How to Fix CVE-2020-15151

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

openmage/magento-lts fixed: 19.4.6 
Upgrade openmage/magento-lts to 19.4.6
openmage/magento-lts fixed: 20.0.2 
Upgrade openmage/magento-lts to 20.0.2
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 openmage/magento-lts

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-15151, inspect your project dependencies for Openmage/magento lts:

inspect dependencies for openmage/magento-lts

Analyze the terminal output to locate any version of Openmage/magento lts in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 19.4.6), 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 Openmage/magento lts, 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

### Impact This vulnerability allows to circumvent the **formkey protection** in the Admin Interface and increases the attack surface for **Cross Site Request Forgery** attacks ### Patches The latest OpenMage Versions up from 19.4.6 and 20.0.2 have this Issue solved ### References Related to Adobes CVE-2020-9690 ( https://helpx.adobe.com/security/products/magento/apsb20-47.html ) fixed in Magento2 https://github.com/magento/magento2/commit/52d72b8010c9cecb5b8e3d98ec5edc1ddcc65fb4 as part of 2.4.0/2.3.5-p2

CVE-2020-15151 Affected Openmage/magento lts Versions

2 component(s)
Fixed Versions:
19.4.620.0.2
Product / Package Ecosystem Affected Versions Fixed Version
openmage/magento-lts
 Packagist
< 19.4.6
19.4.6
openmage/magento-lts
 Packagist
≥ 20.0.0
< 20.0.2
20.0.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-crf2-xm6x-46p6
NVD — CVE-2020-15151 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15151
Security Fix Commit FIX COMMIT
https://github.com/OpenMage/magento-lts/commit/7c526bc6a6a51b57a1bab4c60f104dc36cde347a
Openmage/magento lts Source Repository REPOSITORY
https://github.com/OpenMage/magento-lts
Openmage/magento lts Security Information SECURITY
https://helpx.adobe.com/security/products/magento/apsb20-47.html

Frequently Asked Questions

What is CVE-2020-15151?
CVE-2020-15151 is a security vulnerability in Openmage/magento lts involving Observable Timing Discrepancy in OpenMage LTS under CWE-203: Observable Discrepancy.
Which Openmage/magento lts versions are affected?
Affected versions include releases prior to 19.4.6, 20.0.2 across affected packages: openmage/magento-lts.
What version fixes CVE-2020-15151?
Upgrading to 19.4.6, 20.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openmage/magento-lts affected?
Yes, openmage/magento-lts is affected in releases prior to 19.4.6, 20.0.2. Upgrade your dependency to 19.4.6, 20.0.2 or later.
What is the CVSS score of CVE-2020-15151?
CVE-2020-15151 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2020-15151?
CVE-2020-15151 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-2020-15151?
Run the dependency tree command: 'inspect dependencies for openmage/magento-lts'. 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-crf2-xm6x-46p6",
  "modified" : "2021-11-19T15:36:13Z",
  "published" : "2020-08-19T18:02:36Z",
  "aliases" : [ "CVE-2020-15151" ],
  "summary" : "Observable Timing Discrepancy in OpenMage LTS",
  "details" : "### Impact\nThis vulnerability allows to circumvent the **formkey protection** in the Admin Interface and increases the attack surface for  **Cross Site Request Forgery** attacks \n\n### Patches\nThe latest OpenMage Versions up from 19.4.6 and 20.0.2 have this Issue solved\n\n\n### References\nRelated to Adobes CVE-2020-9690 ( https://helpx.adobe.com/security/products/magento/apsb20-47.html )\nfixed in Magento2 https://github.com/magento/magento2/commit/52d72b8010c9cecb5b8e3d98ec5edc1ddcc65fb4\nas part of 2.4.0/2.3.5-p2",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "openmage/magento-lts"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "19.4.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "openmage/magento-lts"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "20.0.0"
      }, {
        "fixed" : "20.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-crf2-xm6x-46p6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-15151"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/commit/7c526bc6a6a51b57a1bab4c60f104dc36cde347a"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenMage/magento-lts"
  }, {
    "type" : "WEB",
    "url" : "https://helpx.adobe.com/security/products/magento/apsb20-47.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-203", "CWE-352" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-19T18:02:10Z",
    "nvd_published_at" : "2020-08-20T01:17:00Z"
  }
}