Weird-Solutions DHCP Broadband 4.1.0.1503 dhcpt.exe unquoted search path

Summaryinfo

A vulnerability identified as problematic has been detected in Weird-Solutions DHCP Broadband 4.1.0.1503. This affects an unknown part of the file C:\Program Files\DHCP Broadband 4\dhcpt.exe. The manipulation leads to unquoted search path. This vulnerability is documented as CVE-2021-47829. The attack needs to be performed locally. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Weird-Solutions DHCP Broadband 4.1.0.1503. This issue affects some unknown functionality of the file C:\Program Files\DHCP Broadband 4\dhcpt.exe. The manipulation with an unknown input leads to a unquoted search path vulnerability. Using CWE to declare the problem leads to CWE-428. The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

DHCP Broadband 4.1.0.1503 contains an unquoted service path vulnerability in its service configuration that allows local attackers to execute code with elevated privileges. Attackers can exploit the unquoted path in 'C:\Program Files\DHCP Broadband 4\dhcpt.exe' to inject malicious code that will execute during service startup with LocalSystem permissions.

The weakness was released by Erick Galindo as 49850. It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2021-47829 since 01/14/2026. The exploitation is known to be difficult. Attacking locally is a requirement. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1574.009 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49850). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Weird-Solutions

Name

• DHCP Broadband

Version

• 4.1.0.1503

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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