Siemens SIMATIC Drive Controller Family Packet improper validation of specified type of input

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Siemens SIMATIC Drive Controller Family, SIMATIC ET 200SP Open Controller CPU 1515SP PC2, SIMATIC S7-1200 CPU Family, SIMATIC S7-1500 CPU Family, SIMATIC S7-1500 Software Controller and SIMATIC S7-PLCSIM Advanced. Affected by this issue is some unknown functionality of the component Packet Handler. Executing a manipulation can lead to improper validation of specified type of input. The identification of this vulnerability is CVE-2021-44694. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Siemens SIMATIC Drive Controller Family, SIMATIC ET 200SP Open Controller CPU 1515SP PC2, SIMATIC S7-1200 CPU Family, SIMATIC S7-1500 CPU Family, SIMATIC S7-1500 Software Controller and SIMATIC S7-PLCSIM Advanced (SCADA Software). This vulnerability affects an unknown functionality of the component Packet Handler. The manipulation with an unknown input leads to a improper validation of specified type of input vulnerability. The CWE definition for the vulnerability is CWE-1287. The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type. As an impact it is known to affect availability. CVE summarizes:

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V3.0.1), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.6.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.0.1), SIMATIC S7-1500 Software Controller (All versions), SIMATIC S7-PLCSIM Advanced (All versions < V5.0), SIPLUS TIM 1531 IRC (All versions), TIM 1531 IRC (All versions). Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial-of-service in the device.

The weakness was shared 12/13/2022 as ssa-382653. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2021-44694 since 12/07/2021. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper validation of specified type of input
CWE: CWE-1287 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/07/2021 🔍
12/13/2022 +371 days 🔍
12/13/2022 +0 days 🔍
01/08/2023 +26 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-382653
Status: Confirmed

CVE: CVE-2021-44694 (🔍)
GCVE (CVE): GCVE-0-2021-44694
GCVE (VulDB): GCVE-100-215524

Entryinfo

Created: 12/13/2022 19:41
Updated: 01/08/2023 10:51
Changes: 12/13/2022 19:41 (39), 01/08/2023 10:51 (11)
Complete: 🔍
Cache ID: 216::103

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