#VU49517 XML Entity Expansion in XMLBeans


Published: 2021-01-14

Vulnerability identifier: #VU49517

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23926

CWE-ID: CWE-776

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XMLBeans
Universal components / Libraries / Libraries used by multiple products

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper input validation when processing XML data. A remote attacker can pass specially crafted XML data to the application and perform XML Entity Expansion attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

XMLBeans: 1.0.0 - 2.6.0


External links
http://seclists.org/oss-sec/2021/q1/38
http://issues.apache.org/jira/browse/XMLBEANS-517


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability