Cisco Identity Services Engine CLI command injection

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Identity Services Engine. The impacted element is an unknown function of the component CLI. The manipulation leads to command injection. This vulnerability is traded as CVE-2018-0214. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in Cisco Identity Services Engine (Policy Management Software) (the affected version is unknown). It has been rated as problematic. This issue affects an unknown code of the component CLI. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in certain CLI commands of Cisco Identity Services Engine (ISE) could allow an authenticated, local attacker to execute arbitrary commands on the host operating system with the privileges of the local user, aka Command Injection. These commands should have been restricted from this user. The vulnerability is due to insufficient input validation of CLI command user input. An attacker could exploit this vulnerability by authenticating to the targeted device and issuing a CLI command with crafted user input. A successful exploit could allow the attacker to execute arbitrary commands on the affected system that should be restricted. The attacker would need to have valid user credentials for the device. Cisco Bug IDs: CSCvf49844.

The bug was discovered 03/07/2018. The weakness was shared 03/08/2018 (Website). The advisory is shared at securitytracker.com. The identification of this vulnerability is CVE-2018-0214 since 11/27/2017. An attack has to be approached locally. A simple authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/17/2023). MITRE ATT&CK project uses the attack technique T1202 for this issue.

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 $0-$5k.

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 SecurityFocus (BID 103331†). The entries VDB-114206, VDB-114210, VDB-114211 and VDB-114216 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Policy Management Software

Vendor

• Cisco

Name

• Identity Services Engine

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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