CVE-2022-34819

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.

Categories

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.74% Top 30%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC CP 1242-7 V2
Affected: Siemens SIMATIC CP 1243-1
Affected: Siemens SIMATIC CP 1243-7 LTE EU
Affected: Siemens SIMATIC CP 1243-7 LTE US
Affected: Siemens SIMATIC CP 1243-8 IRC
Affected: Siemens SIMATIC CP 1542SP-1 IRC
Affected: Siemens SIMATIC CP 1543-1
Affected: Siemens SIMATIC CP 1543SP-1
Affected: Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL
Affected: Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC
Affected: Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL
Affected: Siemens SIPLUS NET CP 1242-7 V2
Affected: Siemens SIPLUS NET CP 1543-1
Affected: Siemens SIPLUS S7-1200 CP 1243-1
Affected: Siemens SIPLUS S7-1200 CP 1243-1 RAIL
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-34819?
CVE-2022-34819 has been scored as a critical severity vulnerability.
How to fix CVE-2022-34819?
To fix CVE-2022-34819, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-34819 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-34819 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-34819?
CVE-2022-34819 affects Siemens SIMATIC CP 1242-7 V2, Siemens SIMATIC CP 1243-1, Siemens SIMATIC CP 1243-7 LTE EU, Siemens SIMATIC CP 1243-7 LTE US, Siemens SIMATIC CP 1243-8 IRC, Siemens SIMATIC CP 1542SP-1 IRC, Siemens SIMATIC CP 1543-1, Siemens SIMATIC CP 1543SP-1, Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL, Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC, Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL, Siemens SIPLUS NET CP 1242-7 V2, Siemens SIPLUS NET CP 1543-1, Siemens SIPLUS S7-1200 CP 1243-1, Siemens SIPLUS S7-1200 CP 1243-1 RAIL.
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