Vulnerability identifier: #VU14515

Vulnerability risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-1000632

CWE-ID: CWE-611

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
dom4j
Server applications / Frameworks for developing and running applications

Vendor: dom4j

Description

The vulnerability allows a remote attacker to conduct XXE attack on the target system.

The vulnerability exists due to improper sanitization of elements and attribute names in XML documents. A remote attacker can trick the victim into opening a specially crafted XML document that submits malicious input, perform XXE attack and bypass security restrictions to access and modify sensitive information on the system.

Mitigation
Update to version 2.1.1.

Vulnerable software versions

dom4j: 1.1.0 - 2.1.0

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External links
http://github.com/dom4j/dom4j/issues/48

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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. However, proof of concept for this vulnerability is available.