CVE-2019-1683

Cisco SPA112, SPA525, and SPA5x5 Series IP Phones Certificate Validation Vulnerability

Description

A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.

Category

7.4
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.17%
Vendor Advisory cisco.com
Affected: Cisco Cisco Small Business SPA500 Series IP Phones
Affected: Cisco Cisco Small Business SPA112 Series IP Phones
Affected: Cisco Cisco Small Business SPA525 Series IP Phones
Affected: Cisco Cisco Small Business SPA5X5 Series IP Phones
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-ipphone-certs vendor advisory
http://www.securityfocus.com/bid/107111 vdb entry third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2019-1683?
CVE-2019-1683 has been scored as a high severity vulnerability.
How to fix CVE-2019-1683?
To fix CVE-2019-1683, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1683 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-1683 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1683?
CVE-2019-1683 affects Cisco Cisco Small Business SPA500 Series IP Phones, Cisco Cisco Small Business SPA112 Series IP Phones, Cisco Cisco Small Business SPA525 Series IP Phones, Cisco Cisco Small Business SPA5X5 Series IP Phones.
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