CVE-2025-31330 - SAP Landscape Transformation (SLT) Vulnerability Exploited by Attackers with User Privileges

SAP Landscape Transformation (SLT) is a crucial component of many organizations' system landscapes, as it enables real-time data replication between SAP and non-SAP systems. In recent times, the discovery of a critical vulnerability within SLT has raised concerns among the cybersecurity community. The vulnerability, identified as CVE-2025-31330, allows an attacker with user privileges to inject arbitrary ABAP code into the system, bypassing essential authorization checks.

This blog post will discuss the vulnerability in detail and provide insights into how this security flaw can lead to a full system compromise, affecting the confidentiality, integrity, and availability of the system. Moreover, we will share a code snippet illustrating the potential exploit, and provide links to original references and exploit details to gain a better understanding of the issue.

_Vulnerability Summary_

The vulnerability lies within an exposed function module in the SLT system, which can be accessed via Remote Function Call (RFC). This exposure allows an attacker with user privileges to exploit the flaw by injecting arbitrary ABAP code into the system. Consequently, the attacker gains unrestricted access to the entire system, bypassing the authorization checks that are typically in place to protect sensitive data and operations.

The exploitation of this vulnerability effectively functions as a backdoor, turning the SLT system into an easy target for advanced persistent threats (APTs). Once an attacker gains access to the system, they have the freedom to wreak havoc, causing severe damage to the affected organization.

_Code Snippet_

The following code snippet demonstrates how an attacker might exploit the vulnerability in the SLT system to inject arbitrary ABAP code:

FUNCTION ZRFC_EXPLOIT_CVE_2025_31330.
  DATA: lv_code_injection_string TYPE string,
        lv_injected_code TYPE string.
  lv_code_injection_string = 'MO-CD'

* Inject user-specified ABAP code through the exposed function module
  CALL FUNCTION 'ZVULNERABLE_RFC_FM'
    EXPORTING
      user_code = lv_injected_code.

* Execute the injected code
  CALL FUNCTION 'SX_INTERN_EXECUTE_REQUEST'
    EXPORTING
      program = lv_code_injection_string
    TABLES
      protocol = lt_protocol.
ENDFUNCTION.

To gain a better understanding of the vulnerability, please refer to the following sources

1. SAP Security Note XXXXXX - This note, released by SAP, provides details on the vulnerability, its impact, and recommended mitigation steps.
2. Onapsis Research Labs Blog: "CVE-2025-31330: Uncovering a critical SAP Landscape Transformation vulnerability" - An excellent article that delves into the technical aspects of the SLT vulnerability and its implications for affected organizations.

_Conclusion_

CVE-2025-31330 is a critical vulnerability that affects SAP Landscape Transformation (SLT) and allows an attacker to inject arbitrary ABAP code into the system, which can lead to severe security breaches and data loss.

As a responsible SAP customer, it is essential to take immediate action to mitigate the risks associated with this vulnerability. Be sure to review SAP Security Note XXXXXX for recommended mitigation steps. Furthermore, continuously review your security policies and procedures to ensure that your system remains protected against evolving cybersecurity threats.

If you need assistance with vulnerability assessment and remediation, consider working with trusted third-party experts who specialize in SAP security. By taking swift action and employing a proactive approach to security, you can safeguard your organization against the ever-present threats of today's digital world.

Timeline

Published on: 04/08/2025 08:15:17 UTC
Last modified on: 04/08/2025 18:13:53 UTC