CVE-2014-5245: Symfony/http kernel Symfony Allows Direct Access Of Vulnerability

HIGH
Advisory Identifier: GHSA-wvjv-p5rr-mmqm
CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2014-5245 is a HIGH (CVSS 7.5) symfony allows direct access of vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Symfony/http kernel libraries in the Packagist ecosystem. The issue involves symfony allows direct access of esi urls behind a trusted proxy. Remediation is available by upgrading affected packages to version 2.3.19, 2.4.9, 2.5.4.

CVE-2014-5245 at a Glance

CVE Identifier CVE-2014-5245
GHSA Identifier GHSA-wvjv-p5rr-mmqm
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Symfony/http kernel
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
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-2014-5245

To remediate this vulnerability, upgrade all affected Symfony/http kernel 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/http-kernel fixed: 2.3.19
Upgrade symfony/http-kernel to 2.3.19
symfony/http-kernel fixed: 2.4.9
Upgrade symfony/http-kernel to 2.4.9
symfony/http-kernel fixed: 2.5.4
Upgrade symfony/http-kernel to 2.5.4
symfony/symfony fixed: 2.3.19
Upgrade symfony/symfony to 2.3.19
symfony/symfony fixed: 2.4.9
Upgrade symfony/symfony to 2.4.9
symfony/symfony fixed: 2.5.4
Upgrade symfony/symfony to 2.5.4
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/http-kernel

How to Check if You Are Affected

To determine whether your application is affected by CVE-2014-5245, inspect your project dependencies for Symfony/http kernel:

inspect dependencies for symfony/http-kernel

Analyze the terminal output to locate any version of Symfony/http kernel in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.3.19), 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Symfony/http kernel, 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

All 2.2.X, 2.3.X, 2.4.X, and 2.5.X versions of the Symfony HttpKernel component are affected by this security issue. Your application is vulnerable only if the ESI feature is enabled and there is a proxy in front of the web application. This issue has been fixed in Symfony 2.3.19, 2.4.9, and 2.5.4. Note that no fixes are provided for Symfony 2.2 as it is not maintained anymore. Description When you enable the ESI feature and when you are using a proxy like Varnish that you configured as a trusted proxy, the `FragmentHandler` considered requests to render fragments as coming from a trusted source, even if the client was requesting them directly. Symfony can not distinguish between ESI requests done on behalf of the client by Varnish and faked fragment requests coming directly from the client. To mitigate this issue, and for not-supported Symfony versions, you can use the following workaround in your Varnish configuration (`/_fragment` being the URL path prefix configured under the `fragment` setting of the framework bundle configuration): Copy sub vcl_recv { if (req.restarts == 0 && req.url ~ "^/_fragment") { error 400; } } Resolution We do not rely on trusted IPs anymore when validating a fragment request as all fragment URLs are now signed. The patch for this issue is available here: https://github.com/symfony/symfony/pull/11831

CVE-2014-5245 Affected Symfony/http kernel Versions

6 component(s)
Fixed Versions:
2.3.192.4.92.5.4
Product / Package Ecosystem Affected Versions Fixed Version
symfony/http-kernel
Packagist
≥ 2.0.0
< 2.3.19
2.3.19
symfony/http-kernel
Packagist
≥ 2.4.0
< 2.4.9
2.4.9
symfony/http-kernel
Packagist
≥ 2.5.0
< 2.5.4
2.5.4
symfony/symfony
Packagist
≥ 2.0.0
< 2.3.19
2.3.19
symfony/symfony
Packagist
≥ 2.4.0
< 2.4.9
2.4.9
symfony/symfony
Packagist
≥ 2.5.0
< 2.5.4
2.5.4

References

Frequently Asked Questions

What is CVE-2014-5245?
CVE-2014-5245 is a security vulnerability in Symfony/http kernel involving Symfony allows direct access of ESI URLs behind a trusted proxy under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Symfony/http kernel versions are affected?
Affected versions include releases prior to 2.3.19, 2.4.9, 2.5.4 across affected packages: symfony/http-kernel, symfony/symfony.
What version fixes CVE-2014-5245?
Upgrading to 2.3.19, 2.4.9, 2.5.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is symfony/http-kernel affected?
Yes, symfony/http-kernel is affected in releases prior to 2.3.19, 2.4.9, 2.5.4. Upgrade your dependency to 2.3.19, 2.4.9, 2.5.4 or later.
Is symfony/symfony affected?
Yes, symfony/symfony is affected in releases prior to 2.3.19, 2.4.9, 2.5.4. Upgrade your dependency to 2.3.19, 2.4.9, 2.5.4 or later.
What is the CVSS score of CVE-2014-5245?
CVE-2014-5245 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2014-5245?
CVE-2014-5245 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Packagist dependencies for CVE-2014-5245?
Run the dependency tree command: 'inspect dependencies for symfony/http-kernel'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wvjv-p5rr-mmqm",
  "modified" : "2024-05-30T00:46:52Z",
  "published" : "2024-05-30T00:46:52Z",
  "aliases" : [ "CVE-2014-5245" ],
  "summary" : "Symfony allows direct access of ESI URLs behind a trusted proxy",
  "details" : "All 2.2.X, 2.3.X, 2.4.X, and 2.5.X versions of the Symfony HttpKernel component are affected by this security issue. Your application is vulnerable only if the ESI feature is enabled and there is a proxy in front of the web application.\n\nThis issue has been fixed in Symfony 2.3.19, 2.4.9, and 2.5.4. Note that no fixes are provided for Symfony 2.2 as it is not maintained anymore.\n\nDescription\nWhen you enable the ESI feature and when you are using a proxy like Varnish that you configured as a trusted proxy, the `FragmentHandler` considered requests to render fragments as coming from a trusted source, even if the client was requesting them directly. Symfony can not distinguish between ESI requests done on behalf of the client by Varnish and faked fragment requests coming directly from the client.\n\nTo mitigate this issue, and for not-supported Symfony versions, you can use the following workaround in your Varnish configuration (`/_fragment` being the URL path prefix configured under the `fragment` setting of the framework bundle configuration):\n\n Copy\nsub vcl_recv {\n    if (req.restarts == 0 && req.url ~ \"^/_fragment\") {\n        error 400;\n    }\n}\nResolution\nWe do not rely on trusted IPs anymore when validating a fragment request as all fragment URLs are now signed.\n\nThe patch for this issue is available here: https://github.com/symfony/symfony/pull/11831",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/http-kernel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.3.19"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/http-kernel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.4.0"
      }, {
        "fixed" : "2.4.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/http-kernel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.5.0"
      }, {
        "fixed" : "2.5.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.3.19"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.4.0"
      }, {
        "fixed" : "2.4.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "symfony/symfony"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.5.0"
      }, {
        "fixed" : "2.5.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/pull/11831"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/symfony/symfony/commit/654b1f281e09dd96ffbbd3da815411700423ecf5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-kernel/CVE-2014-5245.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2014-5245.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://symfony.com/cve-2014-5245"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-30T00:46:52Z",
    "nvd_published_at" : null
  }
}