Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-42976: Memory Corruption and Information Disclosure in SAP NetWeaver Application Server ABAP

Views: 573

Overview

The vulnerability CVE-2025-42976 is a significant security issue that impacts SAP NetWeaver Application Server ABAP’s BIC Document module. This vulnerability is a cause for concern as it allows an authenticated attacker to crash the target component, rendering it unavailable. More seriously, it can also be exploited to perform an out-of-bounds read operation, potentially revealing sensitive information loaded in memory. Given the extensive use of SAP NetWeaver in various industries worldwide, this vulnerability could have substantial implications if left unpatched.

Vulnerability Summary

CVE ID: CVE-2025-42976
Severity: High (8.1 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise, data leakage, service unavailability

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

SAP NetWeaver Application Server ABAP | All versions before the vendor patch

How the Exploit Works

The exploit works by an authenticated user crafting and submitting a malicious request to a BIC Document application. The malicious request causes a memory corruption error, which results in the crashing of the targeted component. If such requests are made multiple times, the target system could become entirely unavailable. A similar malicious request can also be crafted to perform an out-of-bounds read operation, revealing sensitive information loaded in memory.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP request that an attacker might send to exploit the vulnerability:

POST /BICDocApp/endpoint HTTP/1.1
Host: vulnerable.example.com
Content-Type: application/json
Authorization: Bearer {auth_token_here}
{ "malicious_payload": "crafted_data_leading_to_memory_corruption" }

Mitigation and Recommendations

The best way to mitigate this vulnerability is by applying the patch provided by the vendor, SAP. In the absence of a patch, or until it can be applied, a temporary mitigation strategy would be to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to monitor and block potentially malicious requests. Organizations are advised to ensure they have a robust patch management process in place and regularly update their systems to protect against such vulnerabilities.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat