#VU8819 Authentication bypass in BACnet Field Panels


Published: 2017-10-13

Vulnerability identifier: #VU8819

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-9946

CWE-ID: CWE-288

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BACnet Field Panels
Hardware solutions / Firmware

Vendor: Siemens

Description
The vulnerability allows a remote attacker to obtain potentially sensitive information.

The weakness exists due to authentication bypass. A remote attacker with network access to the integrated web server (Ports 80/TCP and 443/TCP) can bypass authentication and download information from the device.

Mitigation
Update to version 3.5.

Vulnerable software versions

BACnet Field Panels: All versions


External links
http://ics-cert.us-cert.gov/advisories/ICSA-17-285-05


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.


Latest bulletins with this vulnerability