Vulnerability identifier: #VU20383
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Enterprise NFV Infrastructure Software
Server applications /
Virtualization software
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to overwrite files on the underlying operating system (OS) of an affected device.
The vulnerability exists due to improper input validation in an NFVIS file-system command. A remote authenticated administrator can use specially crafted variables during the execution of an affected command and overwrite arbitrary files on the underlying OS.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Enterprise NFV Infrastructure Software: All versions
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-nfv-filewrite
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.