CVE-2018-11385: Symfony/security Symfony Session Fixation Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g4rg-rw65-8hfg
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CVSS 8.1
CWE-384
Published
Advisory Summary

CVE-2018-11385 is a HIGH (CVSS 8.1) symfony session fixation vulnerability vulnerability (CWE-384: Session Fixation) affecting Symfony/security libraries in the Packagist ecosystem. The issue involves symfony session fixation vulnerability. Remediation is available by upgrading affected packages to version 3.4.11, 4.0.11, 2.7.48, 2.8.41, 3.3.17.

CVE-2018-11385 at a Glance

CVE Identifier CVE-2018-11385
GHSA Identifier GHSA-g4rg-rw65-8hfg
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-384: Session Fixation
Affected Product Symfony/security
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2018-11385

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: 3.4.11 
Upgrade symfony/security to 3.4.11
symfony/security fixed: 4.0.11 
Upgrade symfony/security to 4.0.11
symfony/symfony fixed: 2.7.48 
Upgrade symfony/symfony to 2.7.48
symfony/symfony fixed: 2.8.41 
Upgrade symfony/symfony to 2.8.41
symfony/symfony fixed: 3.3.17 
Upgrade symfony/symfony to 3.3.17
symfony/symfony fixed: 3.4.11 
Upgrade symfony/symfony to 3.4.11
symfony/symfony fixed: 4.0.11 
Upgrade symfony/symfony to 4.0.11
symfony/security-http fixed: 2.7.48 
Upgrade symfony/security-http to 2.7.48
symfony/security-http fixed: 2.8.41 
Upgrade symfony/security-http to 2.8.41
symfony/security-http fixed: 3.3.17 
Upgrade symfony/security-http to 3.3.17
symfony/security-http fixed: 3.4.11 
Upgrade symfony/security-http to 3.4.11
symfony/security-http fixed: 4.0.11 
Upgrade symfony/security-http to 4.0.11
symfony/security fixed: 2.7.48 
Upgrade symfony/security to 2.7.48
symfony/security fixed: 2.8.41 
Upgrade symfony/security to 2.8.41
symfony/security fixed: 3.3.17 
Upgrade symfony/security to 3.3.17
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-2018-11385, 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 3.4.11), 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-384: Session Fixation, where authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. 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 the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. A session fixation vulnerability within the "Guard" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.

CVE-2018-11385 Affected Symfony/security Versions

15 component(s)
Fixed Versions:
3.4.114.0.112.7.482.8.413.3.17
Product / Package Ecosystem Affected Versions Fixed Version
symfony/security
 Packagist
≥ 3.4.0
< 3.4.11
3.4.11
symfony/security
 Packagist
≥ 4.0.0
< 4.0.11
4.0.11
symfony/symfony
 Packagist
≥ 2.7.0
< 2.7.48
2.7.48
symfony/symfony
 Packagist
≥ 2.8.0
< 2.8.41
2.8.41
symfony/symfony
 Packagist
≥ 3.0.0
< 3.3.17
3.3.17
symfony/symfony
 Packagist
≥ 3.4.0
< 3.4.11
3.4.11
symfony/symfony
 Packagist
≥ 4.0.0
< 4.0.11
4.0.11
symfony/security-http
 Packagist
≥ 2.7.0
< 2.7.48
2.7.48
symfony/security-http
 Packagist
≥ 2.8.0
< 2.8.41
2.8.41
symfony/security-http
 Packagist
≥ 3.0.0
< 3.3.17
3.3.17
symfony/security-http
 Packagist
≥ 3.4.0
< 3.4.11
3.4.11
symfony/security-http
 Packagist
≥ 4.0.0
< 4.0.11
4.0.11
symfony/security
 Packagist
≥ 2.7.0
< 2.7.48
2.7.48
symfony/security
 Packagist
≥ 2.8.0
< 2.8.41
2.8.41
symfony/security
 Packagist
≥ 3.0.0
< 3.3.17
3.3.17

References

NVD — CVE-2018-11385 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-11385
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/194caff28b56707ea98e746c6582c06acbb9bc3f
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/fa5bf4b17d45ee32f41bd1a9abc3fb6c134ec89b
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/fad1e1f2ea336e85c889feece9d0e23fbfcf777d
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2018-11385.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2018-11385.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11385.yaml
Symfony/security Source Repository REPOSITORY
https://github.com/symfony/symfony
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH
symfony.com/blog/cve-2018-11385... WEB
https://symfony.com/blog/cve-2018-11385-session-fixation-issue-for-guard-authentication
symfony.com/cve-2018-11385 WEB
https://symfony.com/cve-2018-11385
Symfony/security Security Information SECURITY
https://www.debian.org/security/2018/dsa-4262

Frequently Asked Questions

What is CVE-2018-11385?
CVE-2018-11385 is a security vulnerability in Symfony/security involving Symfony Session Fixation Vulnerability under CWE-384: Session Fixation.
Which Symfony/security versions are affected?
Affected versions include releases prior to 3.4.11, 4.0.11, 2.7.48, 2.8.41, 3.3.17 across affected packages: symfony/security, symfony/symfony, symfony/security-http.
What version fixes CVE-2018-11385?
Upgrading to 3.4.11, 4.0.11, 2.7.48, 2.8.41, 3.3.17 (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 3.4.11, 4.0.11, 2.7.48, 2.8.41, 3.3.17. Upgrade your dependency to 3.4.11, 4.0.11, 2.7.48, 2.8.41, 3.3.17 or later.
Is symfony/symfony affected?
Yes, symfony/symfony is affected in releases prior to 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11. Upgrade your dependency to 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11 or later.
What is the CVSS score of CVE-2018-11385?
CVE-2018-11385 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-11385?
CVE-2018-11385 is classified under CWE-384: Session Fixation (Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.).
How can I check Packagist dependencies for CVE-2018-11385?
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-g4rg-rw65-8hfg",
  "modified" : "2024-02-08T19:28:13Z",
  "published" : "2022-05-14T01:22:27Z",
  "aliases" : [ "CVE-2018-11385" ],
  "summary" : "Symfony Session Fixation Vulnerability",
  "details" : "An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.0"
      }, {
        "fixed" : "2.7.48"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.8.41"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.3.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.4.0"
      }, {
        "fixed" : "3.4.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.0.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-http"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.0"
      }, {
        "fixed" : "2.7.48"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-http"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.8.41"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-http"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.3.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-http"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.4.0"
      }, {
        "fixed" : "3.4.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security-http"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.0.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.0"
      }, {
        "fixed" : "2.7.48"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.8.41"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.3.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.4.0"
      }, {
        "fixed" : "3.4.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/security"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.0.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-11385"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/194caff28b56707ea98e746c6582c06acbb9bc3f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/fa5bf4b17d45ee32f41bd1a9abc3fb6c134ec89b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/fad1e1f2ea336e85c889feece9d0e23fbfcf777d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2018-11385.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2018-11385.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11385.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/symfony/symfony"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH"
  }, {
    "type" : "WEB",
    "url" : "https://symfony.com/blog/cve-2018-11385-session-fixation-issue-for-guard-authentication"
  }, {
    "type" : "WEB",
    "url" : "https://symfony.com/cve-2018-11385"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2018/dsa-4262"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-384" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-24T21:53:29Z",
    "nvd_published_at" : "2018-06-13T16:29:00Z"
  }
}