CVE-2015-6403
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.38% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- cisco/spa500 firmware · cisco/spa300 firmware
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-ippVendor Advisory
- http://www.securityfocus.com/bid/78739
- http://www.securitytracker.com/id/1034376
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-ippVendor Advisory
- http://www.securityfocus.com/bid/78739
- http://www.securitytracker.com/id/1034376
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.