Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2019-1683

Severity CVSS v4.0:
Pending analysis
Type:
CWE-295 Improper Certificate Validation
Publication date:
25/02/2019
Last modified:
23/03/2023

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x
7.40
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:spa112_firmware:1.4.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa112:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa525_firmware:7.6.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa525:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa5x5_firmware:7.6.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa5x5:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa500_firmware:1.4.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa500:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa500s_firmware:1.4.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa500s:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa500ds_firmware:1.4.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa500ds:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa501g_firmware:1.4.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa501g:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa502g_firmware:1.4.2:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools