CVE-2022-34820

moderate-risk
Published 2022-07-12

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 does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.

Do I need to act?

-
0.58% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.4/10 High
ADJACENT_NETWORK / LOW complexity

Affected Products (15)

Simatic Cp 1242-7 V2 Firmware
Simatic Cp 1243-1 Firmware
Simatic Cp 1243-7 Lte Eu Firmware
Simatic Cp 1243-7 Lte Us Firmware
Simatic Cp 1243-8 Irc Firmware
Simatic Cp 1542Sp-1 Irc Firmware
Simatic Cp 1543Sp-1 Firmware
Siplus Et 200Sp Cp 1542Sp-1 Irc Tx Rail Firmware
Siplus Et 200Sp Cp 1543Sp-1 Isec Firmware
Siplus Et 200Sp Cp 1543Sp-1 Isec Tx Rail Firmware
Siplus Net Cp 1242-7 V2 Firmware
Siplus S7-1200 Cp 1243-1 Firmware
Siplus S7-1200 Cp 1243-1 Rail Firmware

Affected Vendors

46
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 18/34 · Moderate