CVE-2017-16653: Symfony/security Symfony CSRF Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-92x6-h2gr-8gxq
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CVSS 5.9
CWE-352
Published
Advisory Summary

CVE-2017-16653 is a MODERATE (CVSS 5.9) symfony csrf vulnerability vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Symfony/security libraries in the Packagist ecosystem. The issue involves symfony csrf vulnerability. Remediation is available by upgrading affected packages to version 3.2.14, 2.7.38, 2.8.31, 3.3.13.

CVE-2017-16653 at a Glance

CVE Identifier CVE-2017-16653
GHSA Identifier GHSA-92x6-h2gr-8gxq
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Symfony/security
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2017-16653

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

symfony/security fixed: 3.2.14 
Upgrade symfony/security to 3.2.14
symfony/security-csrf fixed: 2.7.38 
Upgrade symfony/security-csrf to 2.7.38
symfony/security-csrf fixed: 2.8.31 
Upgrade symfony/security-csrf to 2.8.31
symfony/security-csrf fixed: 3.2.14 
Upgrade symfony/security-csrf to 3.2.14
symfony/security-csrf fixed: 3.3.13 
Upgrade symfony/security-csrf to 3.3.13
symfony/security fixed: 2.7.38 
Upgrade symfony/security to 2.7.38
symfony/security fixed: 2.8.31 
Upgrade symfony/security to 2.8.31
symfony/security fixed: 3.3.13 
Upgrade symfony/security to 3.3.13
symfony/symfony fixed: 2.7.38 
Upgrade symfony/symfony to 2.7.38
symfony/symfony fixed: 2.8.31 
Upgrade symfony/symfony to 2.8.31
symfony/symfony fixed: 3.2.14 
Upgrade symfony/symfony to 3.2.14
symfony/symfony fixed: 3.3.13 
Upgrade symfony/symfony to 3.3.13
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 symfony/security

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-16653, inspect your project dependencies for Symfony/security:

inspect dependencies for symfony/security

Analyze the terminal output to locate any version of Symfony/security in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.2.14), 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-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Symfony/security, 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

An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The current implementation of CSRF protection in Symfony (Version >=2) does not use different tokens for HTTP and HTTPS; therefore the token is subject to MITM attacks on HTTP and can then be used in an HTTPS context to do CSRF attacks.

CVE-2017-16653 Affected Symfony/security Versions

12 component(s)
Fixed Versions:
3.2.142.7.382.8.313.3.13
Product / Package Ecosystem Affected Versions Fixed Version
symfony/security
 Packagist
≥ 3.0.0
< 3.2.14
3.2.14
symfony/security-csrf
 Packagist
≥ 2.7.0
< 2.7.38
2.7.38
symfony/security-csrf
 Packagist
≥ 2.8.0
< 2.8.31
2.8.31
symfony/security-csrf
 Packagist
≥ 3.0.0
< 3.2.14
3.2.14
symfony/security-csrf
 Packagist
≥ 3.3.0
< 3.3.13
3.3.13
symfony/security
 Packagist
≥ 2.7.0
< 2.7.38
2.7.38
symfony/security
 Packagist
≥ 2.8.0
< 2.8.31
2.8.31
symfony/security
 Packagist
≥ 3.3.0
< 3.3.13
3.3.13
symfony/symfony
 Packagist
≥ 2.7.0
< 2.7.38
2.7.38
symfony/symfony
 Packagist
≥ 2.8.0
< 2.8.31
2.8.31
symfony/symfony
 Packagist
≥ 3.0.0
< 3.2.14
3.2.14
symfony/symfony
 Packagist
≥ 3.3.0
< 3.3.13
3.3.13

References

NVD — CVE-2017-16653 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16653
Symfony/security Source Repository REPOSITORY
https://github.com/symfony/symfony/pull/24992
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/b4dbdd7cd8732483d585eacff3428c16b07ad15e
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-csrf/CVE-2017-16653.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2017-16653.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2017-16653.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/symfony/symfony
symfony.com/blog/cve-2017-16653... WEB
https://symfony.com/blog/cve-2017-16653-csrf-protection-does-not-use-different-tokens-for-http-and-https
symfony.com/cve-2017-16653 WEB
https://symfony.com/cve-2017-16653
Symfony/security Security Information SECURITY
https://www.debian.org/security/2018/dsa-4262

Frequently Asked Questions

What is CVE-2017-16653?
CVE-2017-16653 is a security vulnerability in Symfony/security involving Symfony CSRF Vulnerability under CWE-352: Cross-Site Request Forgery (CSRF).
Which Symfony/security versions are affected?
Affected versions include releases prior to 3.2.14, 2.7.38, 2.8.31, 3.3.13 across affected packages: symfony/security, symfony/security-csrf, symfony/symfony.
What version fixes CVE-2017-16653?
Upgrading to 3.2.14, 2.7.38, 2.8.31, 3.3.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is symfony/security affected?
Yes, symfony/security is affected in releases prior to 3.2.14, 2.7.38, 2.8.31, 3.3.13. Upgrade your dependency to 3.2.14, 2.7.38, 2.8.31, 3.3.13 or later.
Is symfony/security-csrf affected?
Yes, symfony/security-csrf is affected in releases prior to 2.7.38, 2.8.31, 3.2.14, 3.3.13. Upgrade your dependency to 2.7.38, 2.8.31, 3.2.14, 3.3.13 or later.
What is the CVSS score of CVE-2017-16653?
CVE-2017-16653 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2017-16653?
CVE-2017-16653 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check Packagist dependencies for CVE-2017-16653?
Run the dependency tree command: 'inspect dependencies for symfony/security'. 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-92x6-h2gr-8gxq",
  "modified" : "2023-10-31T20:07:57Z",
  "published" : "2022-05-13T01:44:08Z",
  "aliases" : [ "CVE-2017-16653" ],
  "summary" : "Symfony CSRF Vulnerability",
  "details" : "An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The current implementation of CSRF protection in Symfony (Version >=2) does not use different tokens for HTTP and HTTPS; therefore the token is subject to MITM attacks on HTTP and can then be used in an HTTPS context to do CSRF attacks.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-csrf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.0"
      }, {
        "fixed" : "2.7.38"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-csrf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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        "introduced" : "2.8.0"
      }, {
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    } ]
  }, {
    "package" : {
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      "name" : "symfony/security-csrf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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      }, {
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    } ]
  }, {
    "package" : {
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      "name" : "symfony/security-csrf"
    },
    "ranges" : [ {
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    } ]
  }, {
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      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
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    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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  }, {
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      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.3.0"
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  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
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      "events" : [ {
        "introduced" : "2.7.0"
      }, {
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      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.8.31"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
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      "events" : [ {
        "introduced" : "3.3.0"
      }, {
        "fixed" : "3.3.13"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-16653"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/pull/24992"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/b4dbdd7cd8732483d585eacff3428c16b07ad15e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-csrf/CVE-2017-16653.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2017-16653.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2017-16653.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/symfony/symfony"
  }, {
    "type" : "WEB",
    "url" : "https://symfony.com/blog/cve-2017-16653-csrf-protection-does-not-use-different-tokens-for-http-and-https"
  }, {
    "type" : "WEB",
    "url" : "https://symfony.com/cve-2017-16653"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2018/dsa-4262"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-26T18:09:12Z",
    "nvd_published_at" : "2018-08-06T21:29:00Z"
  }
}