Vulnerability Details : CVE-2017-3851
A Directory Traversal vulnerability in the web framework code of the Cisco application-hosting framework (CAF) component of the Cisco IOx application environment could allow an unauthenticated, remote attacker to read any file from the CAF in the virtual instance running on the affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by submitting crafted requests to the CAF web interface. 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. Cisco IOx Releases 1.0.0.0 and 1.1.0.0 are vulnerable. Cisco Bug IDs: CSCuy52302.
Vulnerability category: Directory traversal
Exploit prediction scoring system (EPSS) score for CVE-2017-3851
Probability of exploitation activity in the next 30 days: 0.28%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 64 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-3851
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-3851
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2017-3851
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf1
Cisco Application-Hosting Framework Directory Traversal VulnerabilityVendor Advisory
-
http://www.securityfocus.com/bid/97013
Cisco Application-Hosting Framework CVE-2017-3851 Directory Traversal VulnerabilityThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1038106
Cisco IOx for Cisco ASR 1000 Series Routers Input Validation Flaw Lets Remote Users Obtain Files on the Target System - SecurityTracker
-
http://www.securitytracker.com/id/1038107
Cisco IOX for 800 Series Industrial Integrated Services Routers Input Validation Flaw Lets Remote Users Obtain Files on the Target System - SecurityTracker
Products affected by CVE-2017-3851
- cpe:2.3:a:cisco:iox:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:iox:1.1\(0\):*:*:*:*:*:*:*