CVE-2019-11831: Typo3/phar stream wrapper Path Traversal Vulnerability

CRITICAL
Advisory Identifier: GHSA-xv7v-rf6g-xwrc
Share
CVSS 9.8
CWE-502 CWE-22
Published
Advisory Summary

CVE-2019-11831 is a CRITICAL (CVSS 9.8) path traversal vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Typo3/phar stream wrapper libraries in the Packagist ecosystem. The issue involves directory traversal in typo3/phar-stream-wrapper. Remediation is available by upgrading affected packages to version 2.1.1, 3.1.1, 7.67.0, 8.6.16, 8.7.1.

CVE-2019-11831 at a Glance

CVE Identifier CVE-2019-11831
GHSA Identifier GHSA-xv7v-rf6g-xwrc
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Typo3/phar stream wrapper
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/A:H).

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

How to Fix CVE-2019-11831

To remediate this vulnerability, upgrade all affected Typo3/phar stream wrapper dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/phar-stream-wrapper fixed: 2.1.1 
Upgrade typo3/phar-stream-wrapper to 2.1.1
typo3/phar-stream-wrapper fixed: 3.1.1 
Upgrade typo3/phar-stream-wrapper to 3.1.1
drupal/core fixed: 7.67.0 
Upgrade drupal/core to 7.67.0
drupal/core fixed: 8.6.16 
Upgrade drupal/core to 8.6.16
drupal/core fixed: 8.7.1 
Upgrade drupal/core to 8.7.1
drupal/drupal fixed: 7.67.0 
Upgrade drupal/drupal to 7.67.0
drupal/drupal fixed: 8.6.16 
Upgrade drupal/drupal to 8.6.16
drupal/drupal fixed: 8.7.1 
Upgrade drupal/drupal to 8.7.1
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 typo3/phar-stream-wrapper

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-11831, inspect your project dependencies for Typo3/phar stream wrapper:

inspect dependencies for typo3/phar-stream-wrapper

Analyze the terminal output to locate any version of Typo3/phar stream wrapper in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.1), 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-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Typo3/phar stream wrapper, 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 PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.

CVE-2019-11831 Affected Typo3/phar stream wrapper Versions

8 component(s)
Fixed Versions:
2.1.13.1.17.67.08.6.168.7.1
Product / Package Ecosystem Affected Versions Fixed Version
typo3/phar-stream-wrapper
 Packagist
≥ 2.0.0
< 2.1.1
2.1.1
typo3/phar-stream-wrapper
 Packagist
≥ 3.0.0
< 3.1.1
3.1.1
drupal/core
 Packagist
≥ 7.0.0
< 7.67.0
7.67.0
drupal/core
 Packagist
≥ 8.0.0
< 8.6.16
8.6.16
drupal/core
 Packagist
≥ 8.7.0
< 8.7.1
8.7.1
drupal/drupal
 Packagist
≥ 7.0.0
< 7.67.0
7.67.0
drupal/drupal
 Packagist
≥ 8.0.0
< 8.6.16
8.6.16
drupal/drupal
 Packagist
≥ 8.7.0
< 8.7.1
8.7.1

References

NVD — CVE-2019-11831 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11831
Typo3/phar stream wrapper Security Information SECURITY
https://www.synology.com/security/advisory/Synology_SA_19_22
www.drupal.org/sa-core-2019-007 WEB
https://www.drupal.org/sa-core-2019-007
Typo3/phar stream wrapper Security Information SECURITY
https://www.debian.org/security/2019/dsa-4445
Typo3/phar stream wrapper Security Information SECURITY
https://typo3.org/security/advisory/typo3-psa-2019-007
seclists.org/bugtraq/2019/may/36 WEB
https://seclists.org/bugtraq/2019/May/36
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR
Typo3/phar stream wrapper Security Information SECURITY
http://www.securityfocus.com/bid/108302
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/05/msg00029.html
Typo3/phar stream wrapper Release RELEASE
https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1
Typo3/phar stream wrapper Release RELEASE
https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1
Typo3/phar stream wrapper Source Repository REPOSITORY
https://github.com/TYPO3/phar-stream-wrapper
Typo3/phar stream wrapper Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/phar-stream-wrapper/CVE-2019-11831.yaml
Typo3/phar stream wrapper Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-11831.yaml
Typo3/phar stream wrapper Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2019-11831.yaml

Frequently Asked Questions

What is CVE-2019-11831?
CVE-2019-11831 is a security vulnerability in Typo3/phar stream wrapper involving Directory Traversal in typo3/phar-stream-wrapper under CWE-502: Deserialization of Untrusted Data.
Which Typo3/phar stream wrapper versions are affected?
Affected versions include releases prior to 2.1.1, 3.1.1, 7.67.0, 8.6.16, 8.7.1 across affected packages: typo3/phar-stream-wrapper, drupal/core, drupal/drupal.
What version fixes CVE-2019-11831?
Upgrading to 2.1.1, 3.1.1, 7.67.0, 8.6.16, 8.7.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/phar-stream-wrapper affected?
Yes, typo3/phar-stream-wrapper is affected in releases prior to 2.1.1, 3.1.1. Upgrade your dependency to 2.1.1, 3.1.1 or later.
Is drupal/core affected?
Yes, drupal/core is affected in releases prior to 7.67.0, 8.6.16, 8.7.1. Upgrade your dependency to 7.67.0, 8.6.16, 8.7.1 or later.
What is the CVSS score of CVE-2019-11831?
CVE-2019-11831 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-11831?
CVE-2019-11831 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Packagist dependencies for CVE-2019-11831?
Run the dependency tree command: 'inspect dependencies for typo3/phar-stream-wrapper'. 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-xv7v-rf6g-xwrc",
  "modified" : "2021-09-30T16:49:05Z",
  "published" : "2021-09-30T17:10:14Z",
  "aliases" : [ "CVE-2019-11831" ],
  "summary" : "Directory Traversal in typo3/phar-stream-wrapper",
  "details" : "The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/phar-stream-wrapper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.1.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/phar-stream-wrapper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.1.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.67.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.6.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.7.0"
      }, {
        "fixed" : "8.7.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.67.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.6.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.7.0"
      }, {
        "fixed" : "8.7.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-11831"
  }, {
    "type" : "WEB",
    "url" : "https://www.synology.com/security/advisory/Synology_SA_19_22"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-core-2019-007"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4445"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-psa-2019-007"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/bugtraq/2019/May/36"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/05/msg00029.html"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3/phar-stream-wrapper"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/phar-stream-wrapper/CVE-2019-11831.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-11831.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2019-11831.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/108302"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-09-30T16:49:05Z",
    "nvd_published_at" : "2019-05-09T04:29:00Z"
  }
}