Unauthorized access to GE Bently Nevada 3500/22M

1) Improper authorization

EUVDB-ID: #VU794

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5788

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated user to obtain elevated privileges.

The vulnerability exists due to presence of several open ports on the device, which allow unauthenticated attacker to gain privileged access. A remote attacker can connect to the device and perform certain actions as legitimate user.

Successful exploitation of this vulnerability results in malicious user's unauthorized access to the affected device with elevated privileges.

Mitigation

Update your firmware to version 5.0.

Vulnerable software versions

GE Bently Nevada 3500/22M: 4.x

External links

http://ics-cert.us-cert.gov/advisories/ICSA-16-252-01

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.