A vulnerability was found in DiGi TransPort LR54 4.4.0.26. It has been rated as very critical. This issue affects an unknown part of the component CLI. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Digi TransPort LR54 4.4.0.26 and possible earlier devices have Improper Input Validation that allows users with 'super' CLI access privileges to bypass a restricted shell and execute arbitrary commands as root.

The bug was discovered 02/17/2019. The weakness was shared 03/21/2019 (Website). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2018-20162 since 12/15/2018. The attack may be initiated remotely. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/03/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $0-$5k.

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

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Vendor

• DiGi

Name

• TransPort LR54

Version

• 4.4.0.26

CPE 2.3info

• 🔍

CPE 2.2info

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