Resource exhaustion in Ovarro products - CVE-2021-22642
Published: March 24, 2021
Vulnerability identifier: #VU51691
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-22642
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can use specially crafted invalid Modbus frames, trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
TBox LT2
TBox RM2
TBox TG2
TBox MS-CPU32
TBox MS-CPU32-S2
TWinSoft
TBox RM2
TBox TG2
TBox MS-CPU32
TBox MS-CPU32-S2
TWinSoft
How to mitigate CVE-2021-22642
Install updates from vendor's website.
TBox MS-CPU32 - update to 1.46
TBox MS-CPU32-S2 - update to 1.46
TWinSoft - update to 12.4
TBox MS-CPU32-S2 - update to 1.46
TWinSoft - update to 12.4