Vulnerability identifier: #VU21972

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15258

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Small Business Voice Gateways and ATAs
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of user-supplied requests to the web-based management interface. A remote authenticated attacker can send a specially crafted request and cause the device to stop responding, requiring manual intervention for recovery.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Small Business Voice Gateways and ATAs: 1.3.2 - 1.4.1 SR3

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-spa-webui-dos

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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