Security Digest · Critical advisory (no CVE assigned)
GHSA-mhpx-3rv8-wrjm: ZendFramework potential XML eXternal Entity injection vectors
Numerous components utilizing PHP's DOMDocument, SimpleXML, and xmlparse functionality are vulnerable to two types of attacks: - XML eXternal Entity (XXE) Injection attacks.
CVSS 9.8 Critical GitHub-reviewed · critical
Should you act?
- Only if you depend on one of the packages below, directly or transitively, in a vulnerable version. Check your lockfile with
composer audit. - No CVE has been assigned, so it will not appear in CVE-based scanners that ignore GitHub advisories.
npm audit,pip-auditand Dependabot do read GitHub advisories.
Affected packages
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Composer (PHP) | zendframework/zendframework1 | >= 1.12.0, < 1.12.4 | 1.12.4 |
Details
Numerous components utilizing PHP's DOMDocument, SimpleXML, and xmlparse 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.
CVSS: 9.8 (v3.1) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources and references
- GitHub Advisory GHSA-mhpx-3rv8-wrjm github.com
- framework.zend.com framework.zend.com
- github.com github.com
Critical Composer (PHP) advisories · Today’s Security Digest