Vulnerability identifier: #VU8893

Vulnerability risk: Low

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12271

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Small Business SPA300
Hardware solutions / Office equipment, IP-phones, print servers
Small Business SPA500
Hardware solutions / Office equipment, IP-phones, print servers

Vendor: Cisco Systems, Inc

Description
The vulnerability allows a remote authenticated attacker to perform CSRF attack.

The weakness exists in Cisco SPA300/SPA500 Series IP Phones due to a lack of cross-site request forgery (CSRF) protection. A remote attacker can create a specially crafted HTML page or URL, trick the victim into visiting it, gain access to the system and perform arbitrary actions.

Mitigation
Update to version 7.6(2)SR3.

Vulnerable software versions

Small Business SPA300: 7.5.5

Small Business SPA500: 7.5.5

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-spa

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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