CVE-2021-45117
CVSS V2 Medium 4.3
CVSS V3 Medium 6.5
Description
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
Overview
- CVE ID
- CVE-2021-45117
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-21T15:15:07
- Last Modified Date
- 2022-09-03T03:55:39
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:opcfoundation:ua-nodeset:*:*:*:*:*:*:*:* | 1 | OR | 1.05.01 | |
| cpe:2.3:a:siemens:simatic_net_pc:14:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_net_pc:16:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:sitop_manager:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:telecontrol_server_basic:3.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf | Patch Third Party Advisory |
| https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf | Patch Vendor Advisory |
| https://www.youtube.com/watch?v=qv-RBdCaV4k | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-45117 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45117 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:41:26 | Added to TrackCVE | |||
| 2022-12-06 12:58:45 | 2022-03-21T15:15Z | 2022-03-21T15:15:07 | CVE Published Date | updated |
| 2022-12-06 12:58:45 | 2022-09-03T03:55:39 | CVE Modified Date | updated | |
| 2022-12-06 12:58:45 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 12:58:49 | References | updated |