National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1683 Detail

Current 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.

Source:  MITRE
Description Last Modified:  02/25/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.4 HIGH
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N (V3 legend)
Impact Score: 5.2
Exploitability Score: 2.2


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

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/107111 Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-ipphone-certs Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Certificate Validation (CWE-295)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
AND
OR
cpe:2.3:o:cisco:spa112_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa112:-:*:*:*:*:*:*:*
Configuration 2
AND
OR
cpe:2.3:o:cisco:spa525_firmware:7.6.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa525:-:*:*:*:*:*:*:*
Configuration 3
AND
OR
cpe:2.3:o:cisco:spa5x5_firmware:7.6.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa5x5:-:*:*:*:*:*:*:*
Configuration 4
AND
OR
cpe:2.3:o:cisco:spa500_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:o:cisco:spa500:-:*:*:*:*:*:*:*
Configuration 5
AND
OR
cpe:2.3:o:cisco:spa500s_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa500s:-:*:*:*:*:*:*:*
Configuration 6
AND
OR
cpe:2.3:o:cisco:spa500ds_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa500ds:-:*:*:*:*:*:*:*
Configuration 7
AND
OR
cpe:2.3:o:cisco:spa501g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa501g:-:*:*:*:*:*:*:*
Configuration 8
AND
OR
cpe:2.3:o:cisco:spa502g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa502g:-:*:*:*:*:*:*:*
Configuration 9
AND
OR
cpe:2.3:o:cisco:spa504g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa504g:-:*:*:*:*:*:*:*
Configuration 10
AND
OR
cpe:2.3:o:cisco:spa508g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa508g:-:*:*:*:*:*:*:*
Configuration 11
AND
OR
cpe:2.3:o:cisco:spa509g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa509g:-:*:*:*:*:*:*:*
Configuration 12
AND
OR
cpe:2.3:o:cisco:spa512g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa512g:-:*:*:*:*:*:*:*
Configuration 13
AND
OR
cpe:2.3:o:cisco:spa514g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa514g:-:*:*:*:*:*:*:*
Configuration 14
AND
OR
cpe:2.3:o:cisco:spa525g_firmware:1.4.2:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:spa525g:-:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1683
NVD Published Date:
02/25/2019
NVD Last Modified:
02/27/2019