Path traversal in Advantech iView

1) Path traversal

EUVDB-ID: #VU46067

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-16245

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

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 send a specially crafted HTTP request and create/download arbitrary files, limit system availability and execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iView: - - 5.7

CPE2.3

• cpe:2.3:a:advantech:iview:*:*:*:*:*:*:*:*
• cpe:2.3:a:advantech:iview:5.6:*:*:*:*:*:*:*
• cpe:2.3:a:advantech:iview:5.7:*:*:*:*:*:*:*

External links

https://us-cert.cisa.gov/ics/advisories/icsa-20-238-01

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.