CVE-2017-16349 : Exploit Details and Defense Strategies

A vulnerability in the reporting feature of SAP BPC allows for the referencing of an XML external entity, potentially leading to information disclosure and denial of service.

Understanding CVE-2017-16349

This CVE involves an XML external entity vulnerability in SAP BPC that can be exploited through specially crafted XML requests.

What is CVE-2017-16349?

The vulnerability in SAP BPC's reporting functionality allows for the referencing of XML external entities, enabling attackers to potentially disclose sensitive information and disrupt services.
Attackers can exploit this issue by sending authenticated HTTP requests.

The Impact of CVE-2017-16349

CVSS Base Score: 6.4 (Medium)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: Low
Integrity Impact: None
Availability Impact: Low
Privileges Required: Low
User Interaction: None
Scope: Changed

Technical Details of CVE-2017-16349

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows for the referencing of XML external entities through specially crafted XML requests.

Affected Systems and Versions

Affected Product: SAP
Affected Version: SAP BPC

Exploitation Mechanism

Attackers exploit the vulnerability by issuing authenticated HTTP requests.

Mitigation and Prevention

Protecting systems from CVE-2017-16349 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Monitor network traffic for any suspicious activity.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security training for employees to recognize and report potential threats.

Patching and Updates

Stay informed about security advisories and updates from SAP.