CVE-2021-20093
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
A buffer over-read vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to disclose heap memory contents or crash the CodeMeter Runtime Server.
Overview
- CVE ID
- CVE-2021-20093
- Assigner
- vulnreport@tenable.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-16T12:15:12
- Last Modified Date
- 2022-10-06T17:43:33
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:wibu:codemeter:*:*:*:*:*:*:*:* | 1 | OR | 7.21a | |
| AND | ||||
| cpe:2.3:a:siemens:pss_cape:-:*:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:siemens:sicam_230_firmware:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:siemens:sicam_230:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:siemens:simatic_information_server:2019:sp1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_information_server:2020:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_pcs_neo:*:*:*:*:*:*:*:* | 1 | OR | 3.1 | |
| cpe:2.3:a:siemens:simatic_wincc_oa:3.17:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simatic_wincc_oa:3.18:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:simit_simulation_platform:*:*:*:*:*:*:*:* | 1 | OR | 10.0 | 10.3 |
| cpe:2.3:a:siemens:simit_simulation_platform:10.3:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:* | 1 | OR | 1.0.1.1 | |
| cpe:2.3:a:siemens:sinec_infrastructure_network_services:1.0.1:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* | 1 | OR | 3.0 | |
| cpe:2.3:a:siemens:sinema_remote_connect_server:3.0:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:siemens:sinema_remote_connect_server:3.0:sp1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:siemens:simatic_process_historian:*:*:*:*:*:*:*:* | 1 | OR | 2019 | 2020 |
| cpe:2.3:h:siemens:simatic_process_historian:2020:-:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-01.pdf | Mitigation Vendor Advisory |
| https://www.tenable.com/security/research/tra-2021-24 | Exploit Patch Third Party Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf | |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-210-02 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-20093 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20093 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:58:13 | Added to TrackCVE | |||
| 2022-12-05 04:29:28 | 2021-06-16T12:15Z | 2021-06-16T12:15:12 | CVE Published Date | updated |
| 2022-12-05 04:29:28 | 2022-10-06T17:43:33 | CVE Modified Date | updated | |
| 2022-12-05 04:29:28 | Analyzed | Vulnerability Status | updated |