Vulnerability Details : CVE-2022-33137
A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions.
Exploit prediction scoring system (EPSS) score for CVE-2022-33137
Probability of exploitation activity in the next 30 days: 0.14%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 48 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-33137
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
nvd@nist.gov |
|
8.0
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
nvd@nist.gov |
CWE ids for CVE-2022-33137
-
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."Assigned by:
- nvd@nist.gov (Primary)
- productcert@siemens.com (Secondary)
References for CVE-2022-33137
-
https://cert-portal.siemens.com/productcert/pdf/ssa-348662.pdf
Patch;Vendor Advisory
Products affected by CVE-2022-33137
- cpe:2.3:o:siemens:simatic_mv540_h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv540_s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv550_h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv550_s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv560_u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv560_x_firmware:*:*:*:*:*:*:*:*