FAST LTA Silent Brick WebUI prior 2.63.04 hd/pi os command injection

Summaryinfo

A vulnerability was found in FAST LTA Silent Brick WebUI. It has been classified as critical. Affected by this issue is some unknown functionality. This manipulation of the argument hd/pi causes os command injection. This vulnerability appears as CVE-2025-2071. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in FAST LTA Silent Brick WebUI. It has been declared as very critical. Affected by this vulnerability is an unknown code block. The manipulation of the argument hd/pi with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A critical OS Command Injection vulnerability has been identified in the FAST LTA Silent Brick WebUI, allowing remote attackers to execute arbitrary operating system commands via specially crafted input. This vulnerability arises due to improper handling of untrusted input, which is passed directly to system-level commands without adequate sanitization or validation. Successful exploitation could allow attackers to execute arbitrary commands on the affected system, potentially resulting in unauthorized access, data leakage, or full system compromise. Affected WebUI parameters are "hd" and "pi".

The weakness was presented by Stefan Mettler. It is possible to read the advisory at fast-lta.de. This vulnerability is known as CVE-2025-2071 since 03/06/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/31/2025). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 2.63.04 eliminates this vulnerability.

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

Productinfo

Vendor

• FAST LTA

Name

• Silent Brick WebUI

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion