CVE-2018-11408: Symfony/symfony Symfony Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-7hwc-2cq4-6x2w
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2018-11408 is a MODERATE (CVSS 6.1) symfony open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Symfony/symfony libraries in the Packagist ecosystem. The issue involves symfony open redirect. Remediation is available by upgrading affected packages to version 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11.

CVE-2018-11408 at a Glance

CVE Identifier CVE-2018-11408
GHSA Identifier GHSA-7hwc-2cq4-6x2w
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Symfony/symfony
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

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

How to Fix CVE-2018-11408

To remediate this vulnerability, upgrade all affected Symfony/symfony 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/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-bundle fixed: 2.7.48 
Upgrade symfony/security-bundle to 2.7.48
symfony/security-bundle fixed: 2.8.41 
Upgrade symfony/security-bundle to 2.8.41
symfony/security-bundle fixed: 3.3.17 
Upgrade symfony/security-bundle to 3.3.17
symfony/security-bundle fixed: 3.4.11 
Upgrade symfony/security-bundle to 3.4.11
symfony/security-bundle fixed: 4.0.11 
Upgrade symfony/security-bundle to 4.0.11
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/symfony

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-11408, inspect your project dependencies for Symfony/symfony:

inspect dependencies for symfony/symfony

Analyze the terminal output to locate any version of Symfony/symfony in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.7.48), 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-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Symfony/symfony, 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

The security handlers in the Security component in Symfony in 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 have an Open redirect vulnerability when security.http_utils is inlined by a container. NOTE: this issue exists because of an incomplete fix for CVE-2017-16652.

CVE-2018-11408 Affected Symfony/symfony Versions

10 component(s)
Fixed Versions:
2.7.482.8.413.3.173.4.114.0.11
Product / Package Ecosystem Affected Versions Fixed Version
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
≥ 3.3.0
< 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-bundle
 Packagist
≥ 2.7.0
< 2.7.48
2.7.48
symfony/security-bundle
 Packagist
≥ 2.8.0
< 2.8.41
2.8.41
symfony/security-bundle
 Packagist
≥ 3.3.0
< 3.3.17
3.3.17
symfony/security-bundle
 Packagist
≥ 3.4.0
< 3.4.11
3.4.11
symfony/security-bundle
 Packagist
≥ 4.0.0
< 4.0.11
4.0.11

References

NVD — CVE-2018-11408 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-11408
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/b20e83562e32c56f8d9b8296ab07b0e4c0a54db8
Symfony/symfony Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-bundle/CVE-2018-11408.yaml
Symfony/symfony Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11408.yaml
Symfony/symfony 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/symfony Security Information SECURITY
https://symfony.com/blog/cve-2018-11408-open-redirect-vulnerability-on-security-handlers
symfony.com/cve-2018-11408 WEB
https://symfony.com/cve-2018-11408

Frequently Asked Questions

What is CVE-2018-11408?
CVE-2018-11408 is a security vulnerability in Symfony/symfony involving Symfony Open Redirect under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Symfony/symfony versions are affected?
Affected versions include releases prior to 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11 across affected packages: symfony/symfony, symfony/security-bundle.
What version fixes CVE-2018-11408?
Upgrading to 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11 (or the latest patched release for your respective branch) resolves the vulnerability.
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.
Is symfony/security-bundle affected?
Yes, symfony/security-bundle 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-2018-11408?
CVE-2018-11408 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-11408?
CVE-2018-11408 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check Packagist dependencies for CVE-2018-11408?
Run the dependency tree command: 'inspect dependencies for symfony/symfony'. 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 
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  "id" : "GHSA-7hwc-2cq4-6x2w",
  "modified" : "2023-10-06T17:58:33Z",
  "published" : "2022-05-14T01:21:15Z",
  "aliases" : [ "CVE-2018-11408" ],
  "summary" : "Symfony Open Redirect",
  "details" : "The security handlers in the Security component in Symfony in 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 have an Open redirect vulnerability when security.http_utils is inlined by a container.  NOTE: this issue exists because of an incomplete fix for CVE-2017-16652.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
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    },
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      }, {
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  }, {
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      "ecosystem" : "Packagist",
      "name" : "symfony/security-bundle"
    },
    "ranges" : [ {
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        "introduced" : "3.4.0"
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    } ]
  }, {
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      "name" : "symfony/security-bundle"
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    "ranges" : [ {
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      "events" : [ {
        "introduced" : "4.0.0"
      }, {
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    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-11408"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/b20e83562e32c56f8d9b8296ab07b0e4c0a54db8"
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    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-bundle/CVE-2018-11408.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11408.yaml"
  }, {
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    "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-2018-11408-open-redirect-vulnerability-on-security-handlers"
  }, {
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  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-24T21:49:51Z",
    "nvd_published_at" : "2018-06-13T16:29:00Z"
  }
}