A vulnerability, which was classified as critical, has been found in Siemens SIMATIC (SCADA Software). This issue affects some unknown functionality. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4), SIMATIC MV560 U (All versions < V3.3.4), SIMATIC MV560 X (All versions < V3.3.4). The result synchronization server 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 all socket-based communication of the affected products if the result server is enabled.

The weakness was presented 07/11/2023 as ssa-561322. It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2023-36521 since 06/22/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 3.3.4 eliminates this vulnerability.

Productinfo

Type

• SCADA Software

Vendor

• Siemens

Name

• SIMATIC

Version

• 1.0
• 1.0.2.2
• 01.00.01.00
• 1.1.2
• 1.1.7
• 1.4.1
• 1.5 SP3 Update 2
• 1.5.18
• 1.6
• 1.8.3
• 2.0
• 2.0.28
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.5.1
• 2.7
• 2.10.2
• 2.12
• 3.0
• 3.0.1.1
• 3.0.2
• 3.0.44
• 3.2.12
• 3.3

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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