Multiple vulnerabilities in Advantech WebAccess/SCADA

Published: 2021-06-18

Risk	Medium
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2021-32956 CVE-2021-32954
CWE-ID	CWE-601 CWE-22
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	WebAccess/SCADA Server applications / SCADA systems
Vendor	Advantech Co., Ltd

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Open redirect

EUVDB-ID: #VU54217

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-32956

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WebAccess/SCADA: 9.0.0 - 9.0.3

CPE2.3

External links

https://ics-cert.us-cert.gov/advisories/icsa-21-168-03

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Path traversal

EUVDB-ID: #VU54218