Overview
The vulnerability, identified as CVE-2025-9189, is an out of bounds write vulnerability that affects all versions of Digilent DASYLab. This vulnerability is due to improper bounds checking, which results in a large destination address when parsing a .DSB file. It poses a significant threat as it can potentially lead to arbitrary code execution, system compromise, or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-9189
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: Arbitrary code execution, Potential system compromise, data leakage
Affected Products
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Product | Affected Versions
Digilent DASYLab | All Versions
How the Exploit Works
The exploit works by taking advantage of improper bounds checking in DASYLab when parsing a .DSB file. The attacker crafts a .DSB file with a large destination address, which exceeds the bounds of the allocated memory space. When the victim opens this file, the malicious code embedded in the .DSB file is executed, potentially leading to system compromise or data leakage.
Conceptual Example Code
The following pseudocode illustrates how the exploit might work:
# Pseudocode for CVE-2025-9189 exploit
def create_malicious_dsb():
dsb_file = DSBFile()
dsb_file.destination_address = create_large_address() # Address larger than allocated memory
dsb_file.code = arbitrary_code() # Malicious code
return dsb_file
def arbitrary_code():
# Code that compromises the system or leaks data
pass
def create_large_address():
# Create an address that exceeds the bounds of memory allocated by DASYLab
passRemember, this is just a conceptual example and does not represent the actual exploit code. Always ensure that you are taking appropriate steps to protect your systems from such vulnerabilities.
Mitigation Guidance
The most effective mitigation strategy is to apply the patch provided by the vendor. If the patch is not immediately available, temporary mitigation can be achieved by using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability.
