Summaryinfo

A vulnerability was found in Cisco Small Business SPA500 up to 7.6.2SR5. It has been rated as critical. This issue affects some unknown processing of the component Configuration Interface. The manipulation leads to command injection. The identification of this vulnerability is CVE-2019-1923. It is possible to launch the attack on the physical device. There is no exploit available. It is recommended to upgrade the affected component. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in Cisco Small Business SPA500 up to 7.6.2SR5. It has been declared as problematic. This vulnerability affects an unknown part of the component Configuration Interface. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device. The vulnerability is due to improper input validation in the device configuration interface. An attacker could exploit this vulnerability by accessing the configuration interface, which may require a password, and then accessing the device's physical interface and inserting a USB storage device. A successful exploit could allow the attacker to execute arbitrary commands on the device in an elevated security context. At the time of publication, this vulnerability affected Cisco Small Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and prior.

The weakness was shared 07/17/2019 as cisco-sa-20190717-spa500-comma as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2019-1923 since 12/06/2018. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Cisco

Name

• Small Business SPA500

Version

• 7.6.2SR5

License

• commercial

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CPE 2.2info

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