Author: Ameeba

Overview

This report analyzes a critical vulnerability, identified as CVE-2025-9188, found in all versions of Digilent DASYLab. This vulnerability stems from deserialization of untrusted data, potentially resulting in arbitrary code execution. The impact of this vulnerability is significant as it could lead to system compromise or data leakage, thus necessitating immediate attention and mitigation.

Vulnerability Summary

CVE ID: CVE-2025-9188
Severity: High (7.8)
Attack Vector: Local
Privileges Required: User level
User Interaction: Required
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Digilent DASYLab | All versions

How the Exploit Works

The vulnerability is rooted in the deserialization process in DASYLab. An attacker can craft a malicious DSB file containing untrusted data. When a user opens this file in DASYLab, the software deserializes the untrusted data. This activity can lead to an arbitrary code execution within the context of the application. Therefore, an attacker could potentially take control of the system or leak sensitive data.

Conceptual Example Code

A hypothetical example of how an attacker might exploit this vulnerability could look something like this:

# Create a malicious DSB file
echo "malicious_payload" > exploit.dsb
# The victim opens the malicious DSB file in DASYLab
DASYLab.exe exploit.dsb

In this scenario, “malicious_payload” would be replaced with actual malicious code that exploits the deserialization vulnerability, allowing the attacker to execute arbitrary commands or extract sensitive data.

Mitigation Guidance

Users are advised to apply the official vendor patch to mitigate the vulnerability. If the patch cannot be applied immediately, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used as a temporary measure to detect and prevent exploitation of this vulnerability. It is also recommended to avoid opening DSB files from untrusted sources.

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

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.

Overview

This report examines CVE-2025-57777, a critical out of bounds write vulnerability in Digilent DASYLab’s displ2.dll, affecting all versions of DASYLab. The vulnerability arises due to improper bounds checking when parsing a DSB file, potentially leading to arbitrary code execution.

Vulnerability Summary

CVE ID: CVE-2025-57777
Severity: High (7.8 CVSS Score)
Attack Vector: Local File
Privileges Required: User
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Digilent DASYLab | All versions

How the Exploit Works

The exploit involves a threat actor crafting a malicious DSB file that, when parsed by displ2.dll in DASYLab, allows a write operation outside of the allocated memory bounds. This out-of-bounds write can result in memory corruption, potentially leading to arbitrary code execution. The attacker must convince the user to open this specially crafted DSB file to successfully exploit the vulnerability.

Conceptual Example Code

Here is a conceptual example of how a specially crafted DSB file might contain a payload to exploit this vulnerability:

$ echo 'malicious_payload' > exploit.dsb

In this example, ‘malicious_payload’ represents the data that causes the out-of-bounds write when the `exploit.dsb` file is opened in DASYLab.

Mitigation Guidance

Users are urged to apply the vendor-supplied patch to mitigate this vulnerability. In the absence of a patch, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by blocking or alerting on attempts to exploit this vulnerability. Users are also advised to be cautious of unsolicited DSB files and to refrain from opening DSB files from untrusted sources.