IBM TRIRIGA Application Platform update for dom4j

1) XXE attack

EUVDB-ID: #VU14515

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 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

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

Install update from vendor's website.

Vulnerable software versions

IBM TRIRIGA Application Platform: before 4.1.1

External links

http://www.ibm.com/blogs/psirt/security-bulletin-tririga-is-vulnerable-to-remote-hacker-due-to-dom4j-open-source/
http://www.ibm.com/support/pages/node/6616093

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

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.