Local command injection in Cisco Small Business SPA500 Series IP Phones



Published: 2019-07-22
Risk Low
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2019-1923
CWE-ID CWE-77
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		Cisco Small Business SPA500 Series IP Phones
Hardware solutions / Office equipment, IP-phones, print servers

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Neutralization of Special Elements used in a Command ('Command Injection')

EUVDB-ID: #VU19286

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-1923

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a physically proximate attacker to execute arbitrary commands on the device.

The vulnerability exists due to the due to improper input validation in the device configuration interface. An attacker with physical access to the device can access the configuration interface, which may require a password, and then access the device's physical interface and insert a USB storage device.

Successful exploitation of this vulnerability allows the attacker to execute arbitrary commands on the device in an elevated security context.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco Small Business SPA500 Series IP Phones: 7.6.2SR5

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-spa500-command


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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