Heap-based buffer overflow in SMA 100 - CVE-2021-20043
Published: December 7, 2021
Vulnerability identifier: #VU58624
CSH Severity: High
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:Amber
CVE-ID: CVE-2021-20043
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SMA 100
SMA 100
Software vendor:
SonicWall
SonicWall
Description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the RAC_GET_BOOKMARKS_HTML5 (RacNumber 35) method that allows users to list their bookmarks. A remote user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.