CVE-2021-27395
CVSS V2 Medium 5.5
CVSS V3 High 8.1
Description
A vulnerability has been identified in SIMATIC Process Historian 2013 and earlier (All versions), SIMATIC Process Historian 2014 (All versions < SP3 Update 6), SIMATIC Process Historian 2019 (All versions), SIMATIC Process Historian 2020 (All versions). An interface in the software that is used for critical functionalities lacks authentication, which could allow a malicious user to maliciously insert, modify or delete data.
Overview
- CVE ID
- CVE-2021-27395
- Assigner
- productcert@siemens.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-12T10:15:11
- Last Modified Date
- 2021-10-19T01:11:52
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:siemens:simatic_process_historian_2013:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2014:-:sp1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2014:-:sp2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2014:-:sp3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2014:-:sp3_update4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2019:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_process_historian_2020:*:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:N/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 5.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-766247.pdf | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27395 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27395 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:51:14 | Added to TrackCVE | |||
| 2022-12-05 12:12:38 | 2021-10-12T10:15Z | 2021-10-12T10:15:11 | CVE Published Date | updated |
| 2022-12-05 12:12:38 | 2021-10-19T01:11:52 | CVE Modified Date | updated | |
| 2022-12-05 12:12:39 | Analyzed | Vulnerability Status | updated |