Buffer overflow in HiOS and HiSecOS - CVE-2020-6994
Published: April 6, 2020 / Updated: September 27, 2022
Vulnerability identifier: #VU26603
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-6994
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Belden Inc.
Affected software:
HiOS
HiSecOS
HiOS
HiSecOS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when parsing URL arguments. A remote attacker can send a pecially crafted HTTP request, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
This vulnerability affects the following devices using HiOS:
And devices using HiSecOS:
How to mitigate CVE-2020-6994
Install updates from vendor's website.