Vulnerability identifier: #VU45917

Vulnerability 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: N/A

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WECON LeviStudioU
Client/Desktop applications / Office applications

Vendor: WECON Technology Co., Ltd.

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in XYSet WordAddr4 when parsing of the TrendSet tag within UMP files. A remote unauthenticated attacker trick the victim to open a specially crafted UMP file, 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: 1.8.29 - 1.10

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External links
http://www.zerodayinitiative.com/advisories/ZDI-20-1061/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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