Multiple vulnerabilities in Advantech WebAccess/SCADA
| 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 Subscribe |
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
CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-32956
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsWebAccess/SCADA: 9.0.0 - 9.0.3
External linkshttp://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
Risk: Medium
CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-32954
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe 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 read arbitrary files on the system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsWebAccess/SCADA: 9.0.0 - 9.0.3
External linkshttp://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 authenticated user 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.
