CVE-2018-2439 : Exploit Details and Defense Strategies

In certain versions of the SAP Internet Graphics Server (IGS), a lack of proper request validation leads to the processing of invalid requests, potentially causing a crash.

Understanding CVE-2018-2439

What is CVE-2018-2439?

The vulnerability in SAP Internet Graphics Server (IGS) versions 7.20, 7.20EXT, 7.45, 7.49, and 7.53 allows for the processing of invalid requests due to insufficient input validation.

The Impact of CVE-2018-2439

The vulnerability enables attackers to send malformed data packets that could lead to a crash in various components of the SAP Internet Graphics Server (IGS).

Technical Details of CVE-2018-2439

Vulnerability Description

The issue arises from inadequate request validation in the HTTP and RFC listener, portwatcher, and multiplexer of the SAP Internet Graphics Server (IGS).

Affected Systems and Versions

Product: SAP Internet Graphics Server (IGS)
Versions: 7.20, 7.20EXT, 7.45, 7.49, 7.53

Exploitation Mechanism

Attackers exploit the lack of proper request validation to send malformed data packets, potentially causing a crash in the affected components.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by SAP to address the vulnerability.
Monitor SAP security notes and updates for any relevant information.

Long-Term Security Practices

Regularly update and patch SAP systems to prevent security vulnerabilities.
Implement proper input validation mechanisms in custom SAP applications.

Patching and Updates

Ensure timely installation of security patches released by SAP to mitigate the risk of exploitation.