Path traversal in Cisco IOx Application Environment

1) Path traversal

EUVDB-ID: #VU51731

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1385

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to the affected device does not properly validate URIs in IOx API requests. A remote administrator can send a specially crafted HTTP request and read or write arbitrary files on the underlying operating system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

809 Industrial Integrated Services Routers: All versions

829 Industrial Integrated Services Routers: All versions

CGR 1000 Compute Module: before 1.9

IC3000 Industrial Compute Gateway: before 1.4.1

Cisco IOS XE: before 17.5.1

Cisco IOS: before 15.9.3 M4

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-pt-hWGcPf7g

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.