Overview
This report discusses a critical vulnerability, CVE-2025-57778, affecting all versions of Digilent DASYLab. The vulnerability stems from an out of bounds write error during the parsing of DSB files, which can result in arbitrary code execution. This puts systems and data at significant risk, emphasizing the importance of immediate mitigation.
Vulnerability Summary
CVE ID: CVE-2025-57778
Severity: High (7.8 CVSS Score)
Attack Vector: Local file
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Digilent DASYLab | All versions
How the Exploit Works
The exploit takes advantage of an out of bounds write vulnerability in Digilent DASYLab. A threat actor crafts a malicious DSB file and convinces a user to open it. The software fails to properly check the bounds, leading to an invalid source address and enabling the attacker to execute arbitrary code.
Conceptual Example Code
This is a conceptual example of how a malicious DSB file might be delivered. The specific payload would vary based on the attacker’s objectives.
POST /sendfile HTTP/1.1
Host: target.example.com
Content-Type: application/dsb
{ "file_data": "base64_encoded_malicious_dsb_file" }Mitigation and Prevention
To mitigate the risk posed by CVE-2025-57778, users should immediately apply the patch provided by the vendor. If the patch cannot be applied immediately, use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. Users should also be educated on the risks of opening unknown or unexpected DSB files.
