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  5. GHSA-8x2v-pcg7-94f4

GHSA-8x2v-pcg7-94f4: Zend-JSON vulnerable to XXE/XEE attacks

June 7, 2024

Numerous components utilizing PHP’s DOMDocument, SimpleXML, and xml_parse functionality are vulnerable to two types of attacks:

  • XML eXternal Entity (XXE) Injection attacks. The above mentioned extensions are insecure by default, allowing external entities to be specified by adding a specific DOCTYPE element to XML documents and strings. By exploiting this vulnerability an application may be coerced to open arbitrary files and/or TCP connections.
  • XML Entity Expansion (XEE) vectors, leading to Denial of Service vectors. XEE attacks occur when the XML DOCTYPE declaration includes XML entity definitions that contain either recursive or circular references; this leads to CPU and memory consumption, making Denial of Service exploits trivial to implement.

References

  • framework.zend.com/security/advisory/ZF2014-01
  • github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zend-json/ZF2014-01.yaml
  • github.com/advisories/GHSA-8x2v-pcg7-94f4
  • github.com/zendframework/zend-json
  • github.com/zendframework/zend-json/commit/078e77a6e59cdbf32a94691afe3523db340f5da9
  • github.com/zendframework/zend-json/commit/7a747fbefe566c28a94b7e7ca37c15fc09ba4754
  • github.com/zendframework/zend-json/commit/865f96ecbc5e080fccb5e75304ce06ac57d2ce22
  • github.com/zendframework/zend-json/commit/89fc6f760478dc15519cb3ef4e4976425dc6ee10
  • github.com/zendframework/zend-json/commit/9fe5103dc9be472fa0a443ca36619a2953b6f88e
  • github.com/zendframework/zend-json/commit/acc60fc3fe56f5b0ad218c4c5789b21f11bc3a89

Code Behaviors & Features

Detect and mitigate GHSA-8x2v-pcg7-94f4 with GitLab Dependency Scanning

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Affected versions

All versions starting from 2.1.0 before 2.1.6, all versions starting from 2.2.0 before 2.2.6

Fixed versions

  • 2.1.6
  • 2.2.6

Solution

Upgrade to versions 2.1.6, 2.2.6 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-611: Improper Restriction of XML External Entity Reference
  • CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Source file

packagist/zendframework/zend-json/GHSA-8x2v-pcg7-94f4.yml

Spotted a mistake? Edit the file on GitLab.

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