GitHub Advisoryadvisory · Packagist

GHSA-mhpx-3rv8-wrjm ZendFramework potential XML eXternal Entity injection vectors

CRITICAL Published 2024-06-07 Modified 2024-06-07 Official page ↗
Ecosystem
Packagist
Packages
zendframework/zendframework1
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-611, CWE-776
Reviewed
2024-06-07

Affected packages

• Packagist zendframework/zendframework1: >= 1.12.0, < 1.12.4 → fixed in 1.12.4

Description

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.

Related

Weakness · CWE (2)

  • CWE-611 Improper Restriction of XML External Entity Reference weakness
  • CWE-776 Improper Restriction of Recursive Entity References in DTDs weakness

References