7.4
CWE
295
Advisory Published
Updated

CVE-2019-1683: Cisco SPA112, SPA525, and SPA5x5 Series IP Phones Certificate Validation Vulnerability

First published: Mon Feb 25 2019(Updated: )

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.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
All of
Cisco SPA112 2-Port Phone Adapter Firmware=1.4.2
Cisco SPA112 2-Port Phone Adapter Firmware
All of
Cisco SPA 525G2 Firmware=7.6.2
Cisco SPA 525g
All of
Cisco SPA5x5 firmware=7.6.2
Cisco SPA5x5 firmware
All of
Cisco SPA 500 Series IP Phone Firmware=1.4.2
Cisco SPA 500
All of
Cisco SPA 500s Firmware=1.4.2
Cisco SPA 500
All of
Cisco SPA 500DS Firmware=1.4.2
Cisco SPA 500 DS
All of
Cisco SPA 501G Firmware=1.4.2
Cisco SPA 501G Firmware
All of
Quectel RG502Q-EA Firmware=1.4.2
Cisco SPA 502G Firmware
All of
Cisco SPA504G=1.4.2
Cisco SPA 500 Series
All of
Cisco SPA508G Firmware=1.4.2
Cisco SPA 508G
All of
Cisco SPA 509g firmware=1.4.2
Cisco SPA 509G
All of
Cisco SPA 512G Firmware=1.4.2
Cisco SPA 512G Firmware
All of
Cisco SPA514G=1.4.2
Cisco SPA 514G Firmware
All of
Cisco SPA 525g firmware=1.4.2
Cisco SPA 525G2 Firmware
Cisco SPA112 2-Port Phone Adapter Firmware=1.4.2
Cisco SPA112 2-Port Phone Adapter Firmware
Cisco SPA 525G2 Firmware=7.6.2
Cisco SPA 525g
Cisco SPA5x5 firmware=7.6.2
Cisco SPA5x5 firmware
Cisco SPA 500 Series IP Phone Firmware=1.4.2
Cisco SPA 500
Cisco SPA 500s Firmware=1.4.2
Cisco SPA 500
Cisco SPA 500DS Firmware=1.4.2
Cisco SPA 500 DS
Cisco SPA 501G Firmware=1.4.2
Cisco SPA 501G Firmware
Quectel RG502Q-EA Firmware=1.4.2
Cisco SPA 502G Firmware
Cisco SPA504G=1.4.2
Cisco SPA 500 Series
Cisco SPA508G Firmware=1.4.2
Cisco SPA 508G
Cisco SPA 509g firmware=1.4.2
Cisco SPA 509G
Cisco SPA 512G Firmware=1.4.2
Cisco SPA 512G Firmware
Cisco SPA514G=1.4.2
Cisco SPA 514G Firmware
Cisco SPA 525g firmware=1.4.2
Cisco SPA 525G2 Firmware

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2019-1683.

  • What is the severity of CVE-2019-1683?

    The severity of CVE-2019-1683 is high, with a CVSS score of 7.4.

  • Which software is affected by CVE-2019-1683?

    The Cisco SPA112, SPA525, and SPA5X5 Series IP Phones are affected by CVE-2019-1683.

  • How can an attacker exploit CVE-2019-1683?

    An unauthenticated, remote attacker can exploit CVE-2019-1683 to listen to or control certain aspects of a TLS-encrypted SIP conversation.

  • Where can I find more information about CVE-2019-1683?

    You can find more information about CVE-2019-1683 on the SecurityFocus and Cisco Security Advisory websites.

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