Critical severity · published Jul 12, 2022
CVE-2022-34819
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions <…
10.0
CVSS
2.1%
EPSS
No
On KEV
Description
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application lacks proper validation of user-supplied data when parsing specific messages. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of device.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Simatic CP 1242-7 V2 Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic CP 1243-1 Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic CP 1243-7 Lte EU Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic CP 1243-7 Lte US Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic CP 1243-8 Irc Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic CP 1542sp-1 Irc Firmware · Siemens
2.0 and later · source: NVD
SC
Simatic CP 1543-1 Firmware · Siemens
before 3.0.22 · source: NVD
SC
Simatic CP 1543sp-1 Firmware · Siemens
2.0 and later · source: NVD
SE
Siplus ET 200sp CP 1542sp-1 Irc TX Rail Firmware · Siemens
2.0 and later · source: NVD
SE
Siplus ET 200sp CP 1543sp-1 Isec Firmware · Siemens
2.0 and later · source: NVD
SE
Siplus ET 200sp CP 1543sp-1 Isec TX Rail Firmware · Siemens
2.0 and later · source: NVD
SN
Siplus Net CP 1242-7 V2 Firmware · Siemens
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-34819
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-34819
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf
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