#VU56429 Improper Neutralization of Argument Delimiters in a Command in Cisco Systems, Inc products - CVE-2021-34718
Published: September 9, 2021
Vulnerability identifier: #VU56429
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34718
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XR
ASR9K-PX
IOSXRWBD
NCS5500
CRS-PX
XRV9K
NCS560
Cisco IOS XR
ASR9K-PX
IOSXRWBD
NCS5500
CRS-PX
XRV9K
NCS560
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to overwrite and read arbitrary files.
The vulnerability exists due to improper input validation in the SSH Server process. A remote authenticated attacker can specify Secure Copy Protocol (SCP) parameters when authenticating to a device and retrieve and upload files on a target device.
Remediation
Install updates from vendor's website.