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CVE-2015-6403

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
15/12/2015
Last modified:
12/04/2025

Description

The TFTP implementation on Cisco Small Business SPA30x, SPA50x, SPA51x phones 7.5.7 improperly validates firmware-image file integrity, which allows local users to load a Trojan horse image by leveraging shell access, aka Bug ID CSCut67400.

Impact

Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:spa500_firmware:7.5.7:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_500ds:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_500s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_501g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_502g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_504g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_508g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_509g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_512g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_514g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_525g2:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa300_firmware:7.5.7:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_301:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:spa_303:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools