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CVE-2025-42977: Directory Traversal Vulnerability in SAP NetWeaver Visual Composer

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Overview

The SAP NetWeaver Visual Composer, a widely used software tool for application development, has been found to contain a critical Directory Traversal vulnerability. This vulnerability, if exploited, could potentially compromise the system or lead to data leakage. Given the widespread use of SAP NetWeaver Visual Composer in many organizations, it is crucial to understand and mitigate the risk associated with this vulnerability.

Vulnerability Summary

CVE ID: CVE-2025-42977
Severity: High (CVSS: 7.6)
Attack Vector: Local network
Privileges Required: High
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

SAP NetWeaver Visual Composer | All versions prior to patch

How the Exploit Works

The vulnerability is caused by the software’s insufficient validation of input paths provided by a high-privileged user. If an attacker can gain high-level privileges, they can exploit this Directory Traversal vulnerability to read or modify arbitrary files in the system. This could lead to unauthorized access to confidential data or even system compromise.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited:

GET /../../../../etc/passwd HTTP/1.1
Host: vulnerable.sap.netweaver.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:88.0) Gecko/20100101 Firefox/88.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1

In this example, the attacker is using a GET HTTP request to access the “/etc/passwd” file, which is outside the intended directory. The “../” represents a directory level above the current one, enabling traversal of the entire file system.
Please note that this is a conceptual example and the actual exploitation may vary based on the system configuration and the privileges of the user.

Mitigation Guidance

To mitigate the impact of this vulnerability, it is highly recommended to apply the latest patch provided by the vendor. In the absence of a patch, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation. Regular monitoring and log analysis are also advised to detect any suspicious activity.

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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.

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