#VU56662 Improper control of interaction frequency in SINEMA Remote Connect Server - CVE-2021-37191

Vulnerability identifier: #VU56662

Vulnerability risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37191

CWE-ID: CWE-799

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
SINEMA Remote Connect Server
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the affected software lacks brute force protection. A remote attacker on the local network can brute force the usernames from the affected software.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SINEMA Remote Connect Server: before 3.0

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-334944.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.