CVE-2021-44695: CVE-2021-44695

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I. Basic Information for CVE-2021-44695

Vulnerability Information

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Vulnerability Title

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Description

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.

Source: NVD (National Vulnerability Database)

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Source: NVD (National Vulnerability Database)

Vulnerability Type

CWE-1286

Source: NVD (National Vulnerability Database)

Vulnerability Title

Siemens SIMATIC Drive Controller 输入验证错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Siemens SIMATIC Drive Controller是德国西门子（Siemens）公司的一系列驱动控制器。 Siemens部分产品存在输入验证错误漏洞，该漏洞源于无法正确处理发送到端口102/tcp的某些特殊包。攻击者利用该漏洞在设备上造成拒绝服务。以下产品及版本受影响：Simatic Drive Controller系列V3.0.1之前版本、Simatic ET 200SP Open Controller CPU 1515SP PC2（包括Siplus变体）、Simatic S7-1200

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Siemens	SIMATIC Drive Controller CPU 1504D TF	All versions < V2.9.7	-
Siemens	SIMATIC Drive Controller CPU 1507D TF	All versions < V2.9.7	-
Siemens	SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)	All versions < V21.9.7	-
Siemens	SIMATIC S7-1200 CPU family (incl. SIPLUS variants)	All versions < V4.6.0	-
Siemens	SIMATIC S7-1500 CPU 1510SP F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1510SP-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511C-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511C-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511T-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1511TF-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1512C-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1512C-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1512SP F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1512SP-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1513F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1513F-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1513R-1 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515F-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515F-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515R-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515T-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1515TF-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1516F-3 PN/DP	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1516F-3 PN/DP	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU 1516T-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1516TF-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1517-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1517F-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1517H-3 PN	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1517T-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1517TF-3 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518HF-4 PN	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518T-4 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU 1518TF-4 PN/DP	All versions < V3.0.1	-
Siemens	SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN	All versions < V2.9.7	-
Siemens	SIMATIC S7-1500 Software Controller V2	All versions < V21.9.7	-
Siemens	SIMATIC S7-PLCSIM Advanced	All versions < V5.0	-
Siemens	SIPLUS ET 200SP CPU 1510SP F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1510SP-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1510SP-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1510SP-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1510SP-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS ET 200SP CPU 1512SP-1 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN TX RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511-1 PN TX RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1511F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1513F-1 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515F-2 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515F-2 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515F-2 PN RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515R-2 PN	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1515R-2 PN TX RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516F-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516F-3 PN/DP	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL	All versions < V2.9.7	-
Siemens	SIPLUS S7-1500 CPU 1517H-3 PN	All versions < V3.0.1	-
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP	All versions < V3.0.1	-
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	All versions < V3.0.1	-
Siemens	SIPLUS S7-1500 CPU 1518F-4 PN/DP	All versions < V3.0.1	-
Siemens	SIPLUS S7-1500 CPU 1518HF-4 PN	All versions < V3.0.1	-
Siemens	SIPLUS TIM 1531 IRC	All versions < V2.3.6	-
Siemens	TIM 1531 IRC	All versions < V2.3.6	-

II. Public POCs for CVE-2021-44695

#	POC Description	Source Link	Shenlong Link

AI-Generated POCPremium

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III. Intelligence Information for CVE-2021-44695

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IV. Related Vulnerabilities

Same product: SIMATIC Drive Controller CPU 1504D TF

Same vendor: Siemens

Same weakness: CWE-1286

V. Comments for CVE-2021-44695

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I. Basic Information for CVE-2021-44695

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-44695

III. Intelligence Information for CVE-2021-44695

IV. Related Vulnerabilities

V. Comments for CVE-2021-44695

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