CVE-2021-37708: Shopware/platform Command Injection Vulnerability

HIGH
Advisory Identifier: GHSA-xh55-2fqp-p775
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CVSS 8.8
CWE-78 CWE-77
Published
Advisory Summary

CVE-2021-37708 is a HIGH (CVSS 8.8) command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Shopware/platform libraries in the Packagist ecosystem. The issue involves command injection in mail agent settings. Remediation is available by upgrading affected packages to version 6.4.3.1.

CVE-2021-37708 at a Glance

CVE Identifier CVE-2021-37708
GHSA Identifier GHSA-xh55-2fqp-p775
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Shopware/platform
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-37708

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

shopware/platform fixed: 6.4.3.1 
Upgrade shopware/platform to 6.4.3.1
shopware/core fixed: 6.4.3.1 
Upgrade shopware/core to 6.4.3.1
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 shopware/platform

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-37708, inspect your project dependencies for Shopware/platform:

inspect dependencies for shopware/platform

Analyze the terminal output to locate any version of Shopware/platform in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.4.3.1), 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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In Shopware/platform, 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 Command injection in mail agent settings ### Patches We recommend updating to the current version 6.4.3.1. You can get the update to 6.4.3.1 regularly via the Auto-Updater or directly via the download overview. https://www.shopware.com/en/download/#shopware-6 ### Workarounds For older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. https://store.shopware.com/en/detail/index/sArticle/518463/number/Swag136939272659

CVE-2021-37708 Affected Shopware/platform Versions

2 component(s)
Fixed Versions:
6.4.3.1
Product / Package Ecosystem Affected Versions Fixed Version
shopware/platform
 Packagist
< 6.4.3.1
6.4.3.1
shopware/core
 Packagist
< 6.4.3.1
6.4.3.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/shopware/platform/security/advisories/GHSA-xh55-2fqp-p775
NVD — CVE-2021-37708 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37708
Security Fix Commit FIX COMMIT
https://github.com/shopware/platform/commit/82d8d1995f6ce9054323b2c3522b1b3cf04853aa
Shopware/platform Source Repository REPOSITORY
https://github.com/shopware/platform

Frequently Asked Questions

What is CVE-2021-37708?
CVE-2021-37708 is a security vulnerability in Shopware/platform involving Command injection in mail agent settings under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Shopware/platform versions are affected?
Affected versions include releases prior to 6.4.3.1 across affected packages: shopware/platform, shopware/core.
What version fixes CVE-2021-37708?
Upgrading to 6.4.3.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is shopware/platform affected?
Yes, shopware/platform is affected in releases prior to 6.4.3.1. Upgrade your dependency to 6.4.3.1 or later.
Is shopware/core affected?
Yes, shopware/core is affected in releases prior to 6.4.3.1. Upgrade your dependency to 6.4.3.1 or later.
What is the CVSS score of CVE-2021-37708?
CVE-2021-37708 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-37708?
CVE-2021-37708 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check Packagist dependencies for CVE-2021-37708?
Run the dependency tree command: 'inspect dependencies for shopware/platform'. 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-xh55-2fqp-p775",
  "modified" : "2021-08-26T19:40:02Z",
  "published" : "2021-08-30T16:14:09Z",
  "aliases" : [ "CVE-2021-37708" ],
  "summary" : "Command injection in mail agent settings",
  "details" : "### Impact\nCommand injection in mail agent settings\n\n### Patches\nWe recommend updating to the current version 6.4.3.1. You can get the update to 6.4.3.1 regularly via the Auto-Updater or directly via the download overview.\n\nhttps://www.shopware.com/en/download/#shopware-6\n\n### Workarounds\nFor older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.\n\nhttps://store.shopware.com/en/detail/index/sArticle/518463/number/Swag136939272659",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.4.3.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 6.4.3.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.4.3.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 6.4.3.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/shopware/platform/security/advisories/GHSA-xh55-2fqp-p775"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-37708"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/shopware/platform/commit/82d8d1995f6ce9054323b2c3522b1b3cf04853aa"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shopware/platform"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77", "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-26T19:40:02Z",
    "nvd_published_at" : "2021-08-16T20:15:00Z"
  }
}