XXE attack in HPE IceWall Federation Agent using libXML2 library

1) XXE attack

EUVDB-ID: #VU8016

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-4449

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.

The weakness exists in libxml2 due to XML external entity (XXE) error when processing XML data by the XML parser. A remote attacker can send manipulated XML content, trick the victim into opening and read important data on the system.

Successful exploitation of the vulnerability may result in information disclosure.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IceWall Federation Agent: 3.0

CPE2.3

• cpe:2.3:a:hpe:icewall_federation_agent:3.0:*:*:*:*:*:*:*

External links

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=emr_na-c05194709

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.