Improperly implemented security check for standard in Siemens products - CVE-2021-42017

Vulnerability identifier: #VU61240

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-42017

CWE-ID: CWE-358

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the implementation flaws of the CBC encryption mode. A remote attacker can perform a man-in-the-middle attack and eavesdrop on encrypted communications.

RUGGEDCOM ROS RSG2288
RUGGEDCOM ROS RSG2100P
RUGGEDCOM ROS RST2228
RUGGEDCOM ROS RST916P
RUGGEDCOM ROS RST916C
RUGGEDCOM ROS RSL910
RUGGEDCOM ROS RSG2488
RUGGEDCOM ROS RSG2300P
RUGGEDCOM ROS RSG2300
RUGGEDCOM ROS M2100
RUGGEDCOM ROS RSG2100P (32M)
RUGGEDCOM ROS RSG2100 (32M)
RUGGEDCOM ROS RSG920P
RUGGEDCOM ROS RSG900
RUGGEDCOM ROS RS900G (32M)
RUGGEDCOM ROS RS900G
RUGGEDCOM ROS RS416V2
RUGGEDCOM ROS RMC8388

Install updates from vendor's website.

RUGGEDCOM ROS RSG2288 - update to 5.6.0
RUGGEDCOM ROS RSG2100P - update to 5.6.0
RUGGEDCOM ROS RST2228 - update to 5.6.0
RUGGEDCOM ROS RST916P - update to 5.6.0
RUGGEDCOM ROS RST916C - update to 5.6.0
RUGGEDCOM ROS RSL910 - update to 5.6.0
RUGGEDCOM ROS RSG2488 - update to 5.6.0
RUGGEDCOM ROS RSG2300P - update to 5.6.0
RUGGEDCOM ROS RSG2300 - update to 5.6.0
RUGGEDCOM ROS M2100 - update to 5.6.0
RUGGEDCOM ROS RSG2100P (32M) - update to 5.6.0
RUGGEDCOM ROS RSG2100 (32M) - update to 5.6.0
RUGGEDCOM ROS RSG920P - update to 5.6.0
RUGGEDCOM ROS RSG900 - update to 5.6.0
RUGGEDCOM ROS RS900G (32M) - update to 5.6.0
RUGGEDCOM ROS RS900G - update to 5.6.0
RUGGEDCOM ROS RS416V2 - update to 5.6.0
RUGGEDCOM ROS RMC8388 - update to 5.6.0

• https://cert-portal.siemens.com/productcert/pdf/ssa-256353.pdf

• Multiple vulnerabilities in Siemens RUGGEDCOM ROS