Remote code execution in Schneider Electric Zelio Soft 2

1) Use-after-free

EUVDB-ID: #VU16885

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7817

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to use-after-free error when handling malicious input. A remote unauthenticated attacker can trick the victim into opening a specially crafted Zelio Soft project file, trigger memory corruption and execute arbitrary code with elevated privileges.

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

Mitigation

Update to version 5.2.

Vulnerable software versions

Zelio Soft 2: before 5.2

External links

http://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD...

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.