CVE-2026-54205
Received Received - Intake

Outbound SMB Connection via TeamDavid Webbox Pathname Parameter

Publication date: 2026-08-07

Last updated on: 2026-08-07

Assigner: Switzerland Government Common Vulnerability Program

Description
Tobit Laboratories AG TeamDavid's Webbox 's link storing functionality (//ServerClient_celink.htm) accepts a “pathname” parameter, which can be set to network locations using UNC paths (e.g., “\\Server\Share”). The server processes these paths without validation, resulting in outbound connection attempts to attacker-controlled SMB servers. This enables authenticated attackers to trigger the server to authenticate to arbitrary SMB endpoints, potentially exposing NTLM authentication information (such as NTLM hashes). If outbound connections to port 445 (SMB) are permitted, attackers can use this to conduct SMB relay or credential theft attacks. Exploitation of the “pathname” parameter is possible without authentication. This issue affects TeamDavid through Rollout 524.

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Meta Information

Published
2026-08-07
Last Modified
2026-08-07
Generated
2026-08-07
AI Q&A
2026-08-07
EPSS Evaluated
N/A
NVD
CVE-2026-54205
EUVD
EUVD-2026-54450

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tobit_laboratories_ag teamdavid to 524 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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Executive Summary

This vulnerability in Tobit Laboratories AG TeamDavid's Webbox allows unauthenticated attackers to specify network locations via UNC paths in the 'pathname' parameter. The server processes these paths without validation, triggering outbound SMB connection attempts to attacker-controlled servers. This can expose NTLM authentication information, enabling credential theft or SMB relay attacks.

Detection Guidance

Monitor outbound SMB connections (port 445) from TeamDavid's Webbox servers. Check logs for unusual UNC path requests in the pathname parameter of //ServerClient_celink.htm. Use network traffic analysis tools to detect unauthorized authentication attempts to external SMB servers.

Impact Analysis

If exploited, attackers could steal NTLM hashes or credentials, leading to unauthorized access to systems or data. The vulnerability allows unauthenticated exploitation, meaning attackers don't need prior access. Outbound SMB connections on port 445 must be permitted for full impact.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling credential theft through NTLM hash exposure. Attackers may capture authentication hashes via SMB relay attacks, which could lead to unauthorized access to sensitive data. If exploited, this may violate data protection requirements under GDPR (e.g., Article 32 on security of processing) and HIPAA (e.g., Security Rule on access controls).

Mitigation Strategies

Block outbound SMB traffic (port 445) at the firewall for TeamDavid servers. Update TeamDavid to the latest Rollout version beyond 524. Disable or restrict access to the pathname parameter in //ServerClient_celink.htm if possible. Monitor for unauthorized connection attempts.

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