Multiple vulnerabilities in WECON LeviStudioU

Published: 2022-01-04 | Updated: 2022-01-27

Risk	High
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2021-23138 CVE-2021-23157
CWE-ID	CWE-121 CWE-122
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	WECON LeviStudioU Client/Desktop applications / Office applications
Vendor	WECON Technology Co., Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU59149

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-23138

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

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 XML or UMP files. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WECON LeviStudioU: 2019-09-21

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Heap-based buffer overflow

EUVDB-ID: #VU59150