CVE-2021-34593
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.
Overview
- CVE ID
- CVE-2021-34593
- Assigner
- info@cert.vde.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-26T10:15:08
- Last Modified Date
- 2022-04-12T18:05:25
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:codesys:plcwinnt:*:*:*:*:*:*:*:* | 1 | OR | 2.4.7.56 | |
| cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:*:x86:* | 1 | OR | 2.4.7.56 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download= | Vendor Advisory |
| http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html | Exploit Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2021/Oct/64 | Mailing List Third Party Advisory |
| http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html | Exploit Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-34593 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34593 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:43:26 | Added to TrackCVE | |||
| 2022-12-05 13:16:05 | 2021-10-26T10:15Z | 2021-10-26T10:15:08 | CVE Published Date | updated |
| 2022-12-05 13:16:05 | 2022-04-12T18:05:25 | CVE Modified Date | updated | |
| 2022-12-05 13:16:05 | Analyzed | Vulnerability Status | updated |