Siemens SIMATIC CP 1242-7 V2 Webserver denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Siemens SIMATIC CP 1242-7 V2, SIMATIC CP 1243-1, SIMATIC CP 1243-1 DNP3, SIMATIC CP 1243-1 IEC, SIMATIC CP 1243-7 LTE EU, SIMATIC CP 1243-7 LTE US, SIMATIC CP 1243-8 IRC, SIMATIC CP 1542SP-1, SIMATIC CP 1542SP-1 IRC, SIMATIC CP 1543SP-1, SIMATIC CP 443-1, SIMATIC CP 443-1 Advanced, SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor. The impacted element is an unknown function of the component Webserver. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2022-43767. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Siemens SIMATIC CP 1242-7 V2, SIMATIC CP 1243-1, SIMATIC CP 1243-1 DNP3, SIMATIC CP 1243-1 IEC, SIMATIC CP 1243-7 LTE EU, SIMATIC CP 1243-7 LTE US, SIMATIC CP 1243-8 IRC, SIMATIC CP 1542SP-1, SIMATIC CP 1542SP-1 IRC, SIMATIC CP 1543SP-1, SIMATIC CP 443-1, SIMATIC CP 443-1 Advanced, SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor (SCADA Software). This vulnerability affects an unknown code block of the component Webserver. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions), SIMATIC CP 1243-1 (All versions), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-7 LTE EU (All versions), SIMATIC CP 1243-7 LTE US (All versions), SIMATIC CP 1243-8 IRC (All versions), SIMATIC CP 1542SP-1 (All versions), SIMATIC CP 1542SP-1 IRC (All versions), SIMATIC CP 1543SP-1 (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions), SIPLUS NET CP 1242-7 V2 (All versions), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3), SIPLUS S7-1200 CP 1243-1 (All versions), SIPLUS S7-1200 CP 1243-1 RAIL (All versions), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). The webserver of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of the webserver of the affected product.

The weakness was released 04/11/2023 as ssa-566905. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2022-43767 since 10/26/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

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: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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

10/26/2022 🔍
04/11/2023 +167 days 🔍
04/11/2023 +0 days 🔍
04/11/2023 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-566905
Status: Confirmed

CVE: CVE-2022-43767 (🔍)
GCVE (CVE): GCVE-0-2022-43767
GCVE (VulDB): GCVE-100-225496

Entryinfo

Created: 04/11/2023 13:31
Changes: 04/11/2023 13:31 (49)
Complete: 🔍
Cache ID: 216::103

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