GHSA-96c6-m98x-hxjx: Zendframework/zend session Zend-Session Session Validation Vulnerability Vulnerability

MODERATE
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CVSS 6.5
CWE-384
Published
Advisory Summary

GHSA-96c6-m98x-hxjx is a MODERATE (CVSS 6.5) zend-session session validation vulnerability vulnerability (CWE-384: Session Fixation) affecting Zendframework/zend session libraries in the Packagist ecosystem. The issue involves zend-session session validation vulnerability. Remediation is available by upgrading affected packages to version 2.2.9, 2.3.4.

GHSA-96c6-m98x-hxjx at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-96c6-m98x-hxjx
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-384: Session Fixation
Affected Product Zendframework/zend session
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

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

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

How to Fix GHSA-96c6-m98x-hxjx

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

zendframework/zend-session fixed: 2.2.9 
Upgrade zendframework/zend-session to 2.2.9
zendframework/zend-session fixed: 2.3.4 
Upgrade zendframework/zend-session to 2.3.4
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 zendframework/zend-session

How to Check if You Are Affected

To determine whether your application is affected by GHSA-96c6-m98x-hxjx, inspect your project dependencies for Zendframework/zend session:

inspect dependencies for zendframework/zend-session

Analyze the terminal output to locate any version of Zendframework/zend session in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.9), 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 Zendframework/zend session, 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

`Zend\Session` session validators do not work as expected if set prior to the start of a session. For instance, the following test case fails (where $this->manager is an instance of `Zend\Session\SessionManager`): ``` $this ->manager ->getValidatorChain() ->attach('session.validate', array(new RemoteAddr(), 'isValid')); $this->manager->start(); $this->assertSame( array( 'Zend\Session\Validator\RemoteAddr' =3D> '', ), $_SESSION['__ZF']['_VALID'] ); ``` The implication is that subsequent calls to `Zend\Session\SessionManager#start()` (in later requests, assuming a session was created) will not have any validator metadata attached, which causes any validator metadata to be re-built from scratch, thus marking the session as valid. An attacker is thus able to simply ignore session validators such as `RemoteAddr` or `HttpUserAgent`, since the "signature" that these validators check against is not being stored in the session.

GHSA-96c6-m98x-hxjx Affected Zendframework/zend session Versions

2 component(s)
Fixed Versions:
2.2.92.3.4
Product / Package Ecosystem Affected Versions Fixed Version
zendframework/zend-session
 Packagist
≥ 2.0.0
< 2.2.9
2.2.9
zendframework/zend-session
 Packagist
≥ 2.3.0
< 2.3.4
2.3.4

References

Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/05fa95488b5ade513c4dcc56051a7ddb1c94f341
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/1272fc047121720130690c324413629d8f63d210
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/35014ab0ae17c2a169320f182697ee9fe73d841e
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/3b1a65b3193a4219f5c4259ab8735f9ad254a021
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/6a27a9fddd8f5b12b3af0de6309181ff5946dd0e
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/7c4b73dd64e01001946aac76c6deddfe1c6ef0be
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/7fc94bd6a60342416242a3899d63072c471b33d3
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/93b43aa0ca5348d29034f67195ffa3f4082878d5
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/9868f84513536446b0bac81cc95e0130b0a6fc9c
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/a3382bfd3067f527762294b5fc622550988e6862
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/b1903947e285568344b3458e4524b016ce311072
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zend-session/commit/ff9236cc4c4944b5f5a6fbfee01420ef82c4fa91
Zendframework/zend session Security Information SECURITY
https://framework.zend.com/security/advisory/ZF2015-01
Zendframework/zend session Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zend-session/ZF2015-01.yaml
Zendframework/zend session Source Repository REPOSITORY
https://github.com/zendframework/zend-session

Frequently Asked Questions

What is GHSA-96c6-m98x-hxjx?
GHSA-96c6-m98x-hxjx is a security vulnerability in Zendframework/zend session involving Zend-Session session validation vulnerability under CWE-384: Session Fixation.
Which Zendframework/zend session versions are affected?
Affected versions include releases prior to 2.2.9, 2.3.4 across affected packages: zendframework/zend-session.
What version fixes GHSA-96c6-m98x-hxjx?
Upgrading to 2.2.9, 2.3.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is zendframework/zend-session affected?
Yes, zendframework/zend-session is affected in releases prior to 2.2.9, 2.3.4. Upgrade your dependency to 2.2.9, 2.3.4 or later.
What is the CVSS score of GHSA-96c6-m98x-hxjx?
GHSA-96c6-m98x-hxjx has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with GHSA-96c6-m98x-hxjx?
GHSA-96c6-m98x-hxjx 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 GHSA-96c6-m98x-hxjx?
Run the dependency tree command: 'inspect dependencies for zendframework/zend-session'. 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-96c6-m98x-hxjx",
  "modified" : "2024-06-07T21:25:23Z",
  "published" : "2024-06-07T21:25:23Z",
  "aliases" : [ ],
  "summary" : "Zend-Session session validation vulnerability",
  "details" : "`Zend\\Session` session validators do not work as expected if set prior to the start of a session.\n\nFor instance, the following test case fails (where $this->manager is an instance of `Zend\\Session\\SessionManager`):\n```\n$this\n    ->manager\n    ->getValidatorChain()\n    ->attach('session.validate', array(new RemoteAddr(), 'isValid'));\n\n$this->manager->start();\n\n$this->assertSame(\n    array(\n        'Zend\\Session\\Validator\\RemoteAddr' =3D> '',\n    ),\n    $_SESSION['__ZF']['_VALID']\n);\n```\nThe implication is that subsequent calls to `Zend\\Session\\SessionManager#start()` (in later requests, assuming a session was created) will not have any validator metadata attached, which causes any validator metadata to be re-built from scratch, thus marking the session as valid.\n\nAn attacker is thus able to simply ignore session validators such as `RemoteAddr` or `HttpUserAgent`, since the \"signature\" that these validators check against is not being stored in the session.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "zendframework/zend-session"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.2.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "zendframework/zend-session"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.3.0"
      }, {
        "fixed" : "2.3.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/05fa95488b5ade513c4dcc56051a7ddb1c94f341"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/1272fc047121720130690c324413629d8f63d210"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/35014ab0ae17c2a169320f182697ee9fe73d841e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/3b1a65b3193a4219f5c4259ab8735f9ad254a021"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/6a27a9fddd8f5b12b3af0de6309181ff5946dd0e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/7c4b73dd64e01001946aac76c6deddfe1c6ef0be"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/7fc94bd6a60342416242a3899d63072c471b33d3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/93b43aa0ca5348d29034f67195ffa3f4082878d5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/9868f84513536446b0bac81cc95e0130b0a6fc9c"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/a3382bfd3067f527762294b5fc622550988e6862"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/b1903947e285568344b3458e4524b016ce311072"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zend-session/commit/ff9236cc4c4944b5f5a6fbfee01420ef82c4fa91"
  }, {
    "type" : "WEB",
    "url" : "https://framework.zend.com/security/advisory/ZF2015-01"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zend-session/ZF2015-01.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zendframework/zend-session"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-384" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-06-07T21:25:23Z",
    "nvd_published_at" : null
  }
}