Vulnerability Details : CVE-2021-40364
A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 5). The affected systems store sensitive information in log files. An attacker with access to the log files could publicly expose the information or reuse it to develop further attacks on the system.
Products affected by CVE-2021-40364
- cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:16:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp1_update1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp1_update2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update3:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update4:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:15:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:16:update1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:16:update2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:16:update3:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:16:update4:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:17:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_wincc:17:update1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_pcs_7:9.1:-:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40364
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40364
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
Siemens AG |
CWE ids for CVE-2021-40364
-
The product writes sensitive information to a log file.Assigned by:
- nvd@nist.gov (Secondary)
- productcert@siemens.com (Primary)
References for CVE-2021-40364
-
https://cert-portal.siemens.com/productcert/pdf/ssa-840188.pdf
Vendor Advisory
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