GHSA-848f-mph5-9pm9: Zendframework/zendframework1 Zendframework Potential Information Disclosure And Vulnerability

HIGH
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CVSS 7.5
CWE-331
Published
Advisory Summary

GHSA-848f-mph5-9pm9 is a HIGH (CVSS 7.5) zendframework potential information disclosure and vulnerability (CWE-331: Insufficient Entropy) affecting Zendframework/zendframework1 libraries in the Packagist ecosystem. The issue involves zendframework potential information disclosure and insufficient entropy vulnerability. Remediation is available by upgrading affected packages to version 1.12.17.

GHSA-848f-mph5-9pm9 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-848f-mph5-9pm9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-331: Insufficient Entropy
Affected Product Zendframework/zendframework1
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 GHSA-848f-mph5-9pm9

To remediate this vulnerability, upgrade all affected Zendframework/zendframework1 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/zendframework1 fixed: 1.12.17 
Upgrade zendframework/zendframework1 to 1.12.17
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 zendframework/zendframework1

How to Check if You Are Affected

To determine whether your application is affected by GHSA-848f-mph5-9pm9, inspect your project dependencies for Zendframework/zendframework1:

inspect dependencies for zendframework/zendframework1

Analyze the terminal output to locate any version of Zendframework/zendframework1 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.12.17), 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-331: Insufficient Entropy, where the product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. In Zendframework/zendframework1, 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

In Zend Framework, Zend_Captcha_Word (v1) and Zend\Captcha\Word (v2) generate a "word" for a CAPTCHA challenge by selecting a sequence of random letters from a character set. Prior to this advisory, the selection was performed using PHP's internal array_rand() function. This function does not generate sufficient entropy due to its usage of rand() instead of more cryptographically secure methods such as openssl_pseudo_random_bytes(). This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.

GHSA-848f-mph5-9pm9 Affected Zendframework/zendframework1 Versions

1 component(s)
Fixed Versions:
1.12.17
Product / Package Ecosystem Affected Versions Fixed Version
zendframework/zendframework1
 Packagist
≥ 1.12.0
< 1.12.17
1.12.17

References

Zendframework/zendframework1 Security Information SECURITY
https://framework.zend.com/security/advisory/ZF2015-09
Zendframework/zendframework1 Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zendframework1/ZF2015-09.yaml
Zendframework/zendframework1 Source Repository REPOSITORY
https://github.com/zendframework/zf1

Frequently Asked Questions

What is GHSA-848f-mph5-9pm9?
GHSA-848f-mph5-9pm9 is a security vulnerability in Zendframework/zendframework1 involving Zendframework Potential Information Disclosure and Insufficient Entropy vulnerability under CWE-331: Insufficient Entropy.
Which Zendframework/zendframework1 versions are affected?
Affected versions include releases prior to 1.12.17 across affected packages: zendframework/zendframework1.
What version fixes GHSA-848f-mph5-9pm9?
Upgrading to 1.12.17 (or the latest patched release for your respective branch) resolves the vulnerability.
Is zendframework/zendframework1 affected?
Yes, zendframework/zendframework1 is affected in releases prior to 1.12.17. Upgrade your dependency to 1.12.17 or later.
What is the CVSS score of GHSA-848f-mph5-9pm9?
GHSA-848f-mph5-9pm9 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 GHSA-848f-mph5-9pm9?
GHSA-848f-mph5-9pm9 is classified under CWE-331: Insufficient Entropy (The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.).
How can I check Packagist dependencies for GHSA-848f-mph5-9pm9?
Run the dependency tree command: 'inspect dependencies for zendframework/zendframework1'. 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-848f-mph5-9pm9",
  "modified" : "2024-06-07T22:27:02Z",
  "published" : "2024-06-07T22:27:02Z",
  "aliases" : [ ],
  "summary" : "Zendframework Potential Information Disclosure and Insufficient Entropy vulnerability",
  "details" : "In Zend Framework, Zend_Captcha_Word (v1) and Zend\\Captcha\\Word (v2) generate a \"word\" for a CAPTCHA challenge by selecting a sequence of random letters from a character set. Prior to this advisory, the selection was performed using PHP's internal array_rand() function. This function does not generate sufficient entropy due to its usage of rand() instead of more cryptographically secure methods such as openssl_pseudo_random_bytes(). This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.",
  "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" : "zendframework/zendframework1"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.12.0"
      }, {
        "fixed" : "1.12.17"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://framework.zend.com/security/advisory/ZF2015-09"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zendframework1/ZF2015-09.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zendframework/zf1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-331" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-06-07T22:27:02Z",
    "nvd_published_at" : null
  }
}