VDB-182581 · CVE-2021-37183 · ssa-334944

Siemens SINEMA Remote Connect Server up to 3.0 SP1 Send-to-Sleep Notification access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SINEMA Remote Connect Server up to 3.0 SP1. It has been rated as critical. This vulnerability affects unknown code of the component Send-to-Sleep Notification Handler. This manipulation causes access control. This vulnerability is handled as CVE-2021-37183. The attack can only be done within the local network. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Siemens SINEMA Remote Connect Server up to 3.0 SP1. It has been declared as critical. Affected by this vulnerability is an unknown function of the component Send-to-Sleep Notification Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect availability.

The weakness was released 09/14/2021 as ssa-334944. The advisory is shared at cert-portal.siemens.com. This vulnerability is known as CVE-2021-37183 since 07/21/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Applying the patch 3.0 SP2 is able to eliminate this problem.

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Productinfo

Vendor

Siemens

Name

SINEMA Remote Connect Server

Version

3.0 SP1

License

commercial

Website

Vendor: https://www.siemens.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 3.0 SP2

Timelineinfo

07/21/2021 🔍
09/14/2021 +55 days 🔍
09/14/2021 +0 days 🔍
04/23/2025 +1317 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-334944
Status: Confirmed

CVE: CVE-2021-37183 (🔍)
GCVE (CVE): GCVE-0-2021-37183
GCVE (VulDB): GCVE-100-182581

Entryinfo

Created: 09/14/2021 15:42
Updated: 04/23/2025 22:43
Changes: 09/14/2021 15:42 (40), 09/17/2021 06:20 (1), 04/23/2025 22:43 (33)
Complete: 🔍
Cache ID: 216::103