CVE-2012-6531: Zendframework/zendframework1 Zend Framework XEE Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-h5p3-7mg6-hgj4
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CWE-776
Published
Advisory Summary

CVE-2012-6531 is a MODERATE zend framework xee vulnerability vulnerability (CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')) affecting Zendframework/zendframework1 libraries in the Packagist ecosystem. The issue involves zend framework xee vulnerability. Remediation is available by upgrading affected packages to version 1.11.13, 1.12.0.

CVE-2012-6531 at a Glance

CVE Identifier CVE-2012-6531
GHSA Identifier GHSA-h5p3-7mg6-hgj4
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Affected Product Zendframework/zendframework1
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2012-6531

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: 1.11.13 
Upgrade zendframework/zendframework1 to 1.11.13
zendframework/zendframework1 fixed: 1.12.0 
Upgrade zendframework/zendframework1 to 1.12.0
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 CVE-2012-6531, 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 1.11.13), 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-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion'), where the product uses xml documents and allows their structure to be defined with a document type definition (dtd), but it does not properly control the number of recursive definitions of entities. 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

(1) `Zend_Dom`, (2) `Zend_Feed`, and (3) `Zend_Soap` in Zend Framework 1.x before 1.11.13 and 1.12.x before 1.12.0 do not properly handle SimpleXMLElement classes, which allow remote attackers to read arbitrary files or create TCP connections via an external entity reference in a DOCTYPE element in an XML-RPC request, aka an XML external entity (XXE) injection attack, a different vulnerability than CVE-2012-3363.

CVE-2012-6531 Affected Zendframework/zendframework1 Versions

2 component(s)
Fixed Versions:
1.11.131.12.0
Product / Package Ecosystem Affected Versions Fixed Version
zendframework/zendframework1
 Packagist
≥ 1.0
< 1.11.13
1.11.13
zendframework/zendframework1
 Packagist
≥ 1.12.0-rc1
< 1.12.0
1.12.0

References

NVD — CVE-2012-6531 NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-6531
Security Fix Commit FIX COMMIT
https://github.com/zendframework/zf1/commit/1b5e86183a72b7b10b6c89e4f95f08c5da9716db
Zendframework/zendframework1 Source Repository REPOSITORY
https://github.com/zendframework/zf1
www.sec-consult.com/files/20120626-0_ze... WEB
https://www.sec-consult.com/files/20120626-0_zend_framework_xxe_injection.txt
Zendframework/zendframework1 Security Information SECURITY
http://framework.zend.com/security/advisory/ZF2012-01
Zendframework/zendframework1 Security Information SECURITY
http://www.debian.org/security/2012/dsa-2505
Zendframework/zendframework1 Security Information SECURITY
http://www.openwall.com/lists/oss-security/2012/06/26/2
Zendframework/zendframework1 Security Information SECURITY
http://www.openwall.com/lists/oss-security/2012/06/26/4
Zendframework/zendframework1 Security Information SECURITY
http://www.openwall.com/lists/oss-security/2012/06/27/2

Frequently Asked Questions

What is CVE-2012-6531?
CVE-2012-6531 is a security vulnerability in Zendframework/zendframework1 involving Zend Framework XEE Vulnerability under CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion').
Which Zendframework/zendframework1 versions are affected?
Affected versions include releases prior to 1.11.13, 1.12.0 across affected packages: zendframework/zendframework1.
What version fixes CVE-2012-6531?
Upgrading to 1.11.13, 1.12.0 (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 1.11.13, 1.12.0. Upgrade your dependency to 1.11.13, 1.12.0 or later.
What CWE is associated with CVE-2012-6531?
CVE-2012-6531 is classified under CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') (The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.).
How can I check Packagist dependencies for CVE-2012-6531?
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-h5p3-7mg6-hgj4",
  "modified" : "2024-01-12T19:50:47Z",
  "published" : "2022-05-17T05:14:21Z",
  "aliases" : [ "CVE-2012-6531" ],
  "summary" : "Zend Framework XEE Vulnerability",
  "details" : "(1) `Zend_Dom`, (2) `Zend_Feed`, and (3) `Zend_Soap` in Zend Framework 1.x before 1.11.13 and 1.12.x before 1.12.0 do not properly handle SimpleXMLElement classes, which allow remote attackers to read arbitrary files or create TCP connections via an external entity reference in a DOCTYPE element in an XML-RPC request, aka an XML external entity (XXE) injection attack, a different vulnerability than CVE-2012-3363.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "zendframework/zendframework1"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0"
      }, {
        "fixed" : "1.11.13"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "zendframework/zendframework1"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.12.0-rc1"
      }, {
        "fixed" : "1.12.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2012-6531"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zendframework/zf1/commit/1b5e86183a72b7b10b6c89e4f95f08c5da9716db"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zendframework/zf1"
  }, {
    "type" : "WEB",
    "url" : "https://www.sec-consult.com/files/20120626-0_zend_framework_xxe_injection.txt"
  }, {
    "type" : "WEB",
    "url" : "http://framework.zend.com/security/advisory/ZF2012-01"
  }, {
    "type" : "WEB",
    "url" : "http://www.debian.org/security/2012/dsa-2505"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2012/06/26/2"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2012/06/26/4"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2012/06/27/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-776" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-12T19:50:47Z",
    "nvd_published_at" : "2013-02-13T17:55:00Z"
  }
}