Vulnerability · Published Nov 9, 2021 · Assigned by siemens

CVE-2021-31344

Medium 5.3

In plain English

A medium-severity type confusion in Capital Embedded AR Classic 431-422 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.5%top 26.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)

Affected products (as reported)

VendorProductVersions
Siemens Capital Embedded AR Classic 431-422 0 – before *
Siemens Capital Embedded AR Classic R20-11 0 – before V2303
Siemens PLUSCONTROL 1st Gen All versions
Siemens SIMOTICS CONNECT 400 All versions < V0.5.0.0
Siemens SIMOTICS CONNECT 400 All versions < V1.0.0.0

Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References