Multiple vulnerabilities in B&R Automation Studio
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2019-19100 CVE-2019-19101 CVE-2019-19102 |
| CWE-ID | CWE-264 CWE-325 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Automation Studio Other software / Other software solutions |
| Vendor | B&R Industrial Automation GmbH |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU26604
Risk: Low
CVSSv3.1: 6.5 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-19100
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper permission checks in the upgrade service. A local user can delete arbitrary files via an exposed interface.
This vulnerability affects the following versions:
Install updates from vendor's website.
Vulnerable software versionsAutomation Studio: before 4.8.1
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-20-093-01
http://www.br-automation.com/en-gb/service/cyber-security/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Missing Required Cryptographic Step
EUVDB-ID: #VU26605
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-19101
CWE-ID:
CWE-325 - Missing Required Cryptographic Step
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to the missing secure communication definition and an incomplete TLS validation in the upgrade service. A remote attacker can perform MitM attacks via the B&R upgrade server.
This vulnerability affects the following versions:
Install updates from vendor's website.
Vulnerable software versionsAutomation Studio: before 4.8.1
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-20-093-01
http://www.br-automation.com/en-gb/service/cyber-security/
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.
3) Path traversal
EUVDB-ID: #VU26606
Risk: Low
CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-19102
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in SharpZipLib used in the upgrade service. A local attacker can send a specially crafted HTTP request and read arbitrary files on the system.
This vulnerability affects the following versions:
Install update from vendor's website.
Vulnerable software versionsAutomation Studio: before 4.8.1
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-20-093-01
http://www.br-automation.com/en-gb/service/cyber-security/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
