Siemens: >> Simatic S7-1200 Firmware Security Vulnerabilities
Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.
CVSS Score
7.5
EPSS Score
0.009
Published
2021-07-13
A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) < 11), SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 11), SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 12), SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of the affected devices that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process.
CVSS Score
6.8
EPSS Score
0.001
Published
2019-12-12
A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6). An attacker could exhaust the available connection pool of an affected device by opening a sufficient number of connections to the device. Successful exploitation requires an attacker to be able to send packets to port 102/tcp of the affected device. No user interaction and no user privileges are required to exploit the vulnerability. The vulnerability, if exploited, could cause a Denial-of-Service condition impacting the availability of the system. At the time of advisory publication no public exploitation of this vulnerability was known.
CVSS Score
7.5
EPSS Score
0.005
Published
2018-12-13
Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.
CVSS Score
7.5
EPSS Score
0.039
Published
2017-12-26
Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected.
CVSS Score
6.5
EPSS Score
0.004
Published
2017-05-11
Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected.
CVSS Score
6.5
EPSS Score
0.023
Published
2017-05-11
Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition and control outage) via crafted packets to TCP port 102 (aka the ISO-TSAP port).
CVSS Score
7.8
EPSS Score
0.003
Published
2013-04-22
Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition and control outage) via crafted packets to UDP port 161 (aka the SNMP port).
CVSS Score
7.8
EPSS Score
0.003
Published
2013-04-22
Cross-site scripting (XSS) vulnerability in the web server on Siemens SIMATIC S7-1200 PLCs 2.x through 3.0.1 allows remote attackers to inject arbitrary web script or HTML via a crafted URI.
CVSS Score
4.3
EPSS Score
0.012
Published
2012-10-10
The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate, which allows remote attackers to spoof the S7-1200 web server by using this key to create a forged certificate.
CVSS Score
4.3
EPSS Score
0.006
Published
2012-09-25
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