Vulnerability identifier: #VU27964

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7495

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
EcoStruxure Operator Terminal Expert
Client/Desktop applications / Other client software

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can trick a victim to open a specially crafted ZIP file and gain unauthorized write access outside of expected path folder.

Mitigation
Install update from vendor's website.

Vulnerable software versions

EcoStruxure Operator Terminal Expert: 3.1 SP1

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External links
http://www.zerodayinitiative.com/advisories/ZDI-20-657/
http://www.se.com/ww/en/download/document/SEVD-2020-133-04/

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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.