A vulnerability was found in Cisco Industrial Ethernet 4010 Series Switch (version now known). It has been rated as critical. Affected by this issue is some unknown processing of the component CLI Command Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in one of the diagnostic test CLI commands on Cisco Industrial Ethernet 4010 Series Switches running Cisco IOS Software could allow an authenticated, local attacker to impact the stability of the device. This could result in arbitrary code execution or a denial of service (DoS) condition. The attacker has to have valid user credentials at privilege level 15. The vulnerability is due to a diagnostic test CLI command that allows the attacker to write to the device memory. An attacker could exploit this vulnerability by authenticating to the targeted device and issuing a specific diagnostic test command at the CLI. An exploit could allow the attacker to overwrite system memory locations, which could have a negative impact on the stability of the device. Cisco Bug IDs: CSCvf71150.

The bug was discovered 01/17/2018. The weakness was disclosed 01/18/2018 (Website). The advisory is available at securitytracker.com. This vulnerability is handled as CVE-2018-0088 since 11/27/2017. Local access is required to approach this attack. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/01/2021). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316261 (Cisco IOS Software Test Command Arbitrary Code Execution and Denial of Service Vulnerability (cisco-sa-20180117-iess)).

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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• Cisco

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• Industrial Ethernet 4010 Series Switch

License

• commercial

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