Synopsis
The remote OT asset is affected by a vulnerability.
Description
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Unencrypted storage of passwords in the project could allow an attacker with access to port 10005/tcp to obtain passwords of the device. The security vulnerability could be exploited by an unauthenticated attacker with network access to port 10005/tcp. No user interaction is required to exploit this security vulnerability. The vulnerability impacts confidentiality of the device. At the time of advisory publication no public exploitation of this security vulnerability was known
This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.
Siemens has released an update for the LOGO! 8 BM (update to v8.3) and recommends that customers update to the latest version.. Notice that in order to update, a new hardware version is required.
To reduce risk, Siemens recommends that users apply defense-in-depth concepts, including protection concept outlined in the system manual.
As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security and following the recommendations in the product manuals.
Additional information on industrial security for Siemens devices can be found at:
https://www.siemens.com/industrialsecurity
For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens Security Advisory SSA-542701
Plugin Details
Supported Sensors: Tenable OT Security
Risk Information
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:siemens:logo%218_bm_firmware
Required KB Items: Tenable.ot/Siemens
Exploit Ease: Exploits are available
Patch Publication Date: 5/14/2019
Vulnerability Publication Date: 5/14/2019