Advisory Details

January 18th, 2018

Wecon LeviStudioU General FigureFile Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2017-16737
CVSS SCORE	4.6, AV:L/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Wecon
AFFECTED PRODUCTS	LeviStudioU
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of WECON LeviStudioU. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists in the handling of LeviStudioU Project files. When providing an overly long General FigureFile XML attribute, the process does not properly validate the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code under the context of the current process.
ADDITIONAL DETAILS	Wecon has issued an update to correct this vulnerability. More details can be found at: https://ics-cert.us-cert.gov/advisories/ICSA-18-011-01
DISCLOSURE TIMELINE	2017-12-01 - Vulnerability reported to vendor 2018-01-18 - Coordinated public release of advisory
CREDIT	HanM0u of CloverSec Labs

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