SAP BusinessObjects BI Platform CVE-2019-0396 XML External Entity Injection Vulnerability

Description

SAP BusinessObjects Business Intelligence Platform is prone to an XML External Entity injection vulnerability. Attackers can exploit this issue to gain access to sensitive information or cause denial-of-service condition. SAP BusinessObjects Business Intelligence Platform versions 4.1 and 4.2 are vulnerable.

Technologies Affected

• SAP BusinessObjects BI Platform 4.1
• SAP BusinessObjects BI Platform 4.2

Recommendations

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn’t required. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of malicious activity such as requests containing suspicious URI sequences. Since the webserver may also log such requests, audit its logs regularly.

Run all software as a nonprivileged user with minimal access rights.
To limit the consequences of a successful exploit, run server processes within a restricted environment using facilities such as chroot or jail.

Updates are available. Please see the references or vendor advisory for more information.