Paper/Archive/CVE-2022-34819

CVE-2022-34819

Siemens SIMATIC CP 1242-7 V2 — 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…

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
SIMATIC CP 1242-7 V2All versions < V3.3.46–CNA
SIMATIC CP 1243-1All versions < V3.3.46–CNA
SIMATIC CP 1243-7 LTE EUAll versions < V3.3.46–CNA
SIMATIC CP 1243-7 LTE USAll versions < V3.3.46–CNA
SIMATIC CP 1243-8 IRCAll versions < V3.3.46–CNA
SIMATIC CP 1542SP-1 IRCAll versions >= V2.0 < V2.2.28–CNA
SIMATIC CP 1543-1All versions < V3.0.22–CNA
SIMATIC CP 1543SP-1All versions >= V2.0 < V2.2.28–CNA
SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILAll versions >= V2.0 < V2.2.28–CNA
SIPLUS ET 200SP CP 1543SP-1 ISECAll versions >= V2.0 < V2.2.28–CNA
SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAILAll versions >= V2.0 < V2.2.28–CNA
SIPLUS NET CP 1242-7 V2All versions < V3.3.46–CNA

Scores by source

siemens (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refcert-portal.siemens.com/productcert/pdf/ssa-517377.pdf