Home→Vulnerabilities→CVE-2021-37185
Disclosed

CVE-2021-37185

A vulnerability has been identified in SIMATIC Drive Controller family (All versions >= V2.9.2 = V21.9 = V4.5.0 = V2.9.2 = V21.9 = V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packets over port 102/tcp. A restart of the affected device is needed to restore normal operations.

Share this vulnerability:

Exploitation Probability (EPSS)

Low Priority
2.01%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events
Feb 9, 2022
Vulnerability Disclosed
Published to component-level vulnerability database.
Apr 11, 2023
Last Updated
Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL
Associated Groups:Lazarus Group, APT28
Ransomware Campaigns:LockBit 3.0, BlackCat
IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

Affected Products

96 Total
siemens/simatic_drive_controller_cpu_1504d_tf_firmwareAll Versions
siemens/simatic_drive_controller_cpu_1504d_tf-
siemens/simatic_drive_controller_cpu_1507d_tf_firmwareAll Versions
siemens/simatic_drive_controller_cpu_1507d_tf-
siemens/simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmwareAll Versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdfSiemens
PatchVendor Advisory

Am I Vulnerable?

Check your domain or package.json for CVE-2021-37185 exposure.

Share This Page

Help others discover this vulnerability information

Vulnerability Details

CVSS Base Score
7.5/ 10
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published Date
Feb 9, 2022
Last Modified
Apr 11, 2023
Need API Access?

Integrate this data into your SOAR platform.

View Plans →
Need Manual Validation?

Automated scanners flag false positives. Get a manual pentest validation for this CVE.