VulnerabilityModified

CVE-2017-3853

CRITICAL 9.8EPSS 8.71%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (8.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability in the Data-in-Motion (DMo) process installed with the Cisco IOx application environment could allow an unauthenticated, remote attacker to cause a stack overflow that could allow remote code execution with root privileges in the virtual instance running on an affected device. The vulnerability is due to insufficient bounds checking in the DMo process. An attacker could exploit this vulnerability by sending crafted packets that are forwarded to the DMo process for evaluation. The impacts of a successful exploit are limited to the scope of the virtual instance and do not impact the router that is hosting Cisco IOx. This vulnerability affects the following Cisco 800 Series Industrial Integrated Services Routers: Cisco IR809 and Cisco IR829. Cisco IOx Releases 1.0.0.0 and 1.1.0.0 are vulnerable. Cisco Bug IDs: CSCuy52330.

CVSS 3.0: 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 8.71% probability · 95th percentile
CISA KEV: Not listed
Weakness: CWE-119
Affected: cisco/iox
Source: psirt@cisco.com

References

http://www.securityfocus.com/bid/97011Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038105
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-ioxVendor Advisory
http://www.securityfocus.com/bid/97011Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038105
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-ioxVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.