CVE-2021-22681
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key to verify Logix controllers are communicating with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800. Rockwell Automation Studio 5000 Logix Designer Versions 21 and later and RSLogix 5000: Versions 16 through 20 are vulnerable because an unauthenticated attacker could bypass this verification mechanism and authenticate with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800.
Overview
- CVE ID
- CVE-2021-22681
- Assigner
- ics-cert@hq.dhs.gov
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-03T18:15:14
- Last Modified Date
- 2022-04-25T16:16:25
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:rockwellautomation:factorytalk_services_platform:*:*:*:*:*:*:*:* | 1 | OR | 2.10 | |
| cpe:2.3:a:rockwellautomation:rslogix_5000:*:*:*:*:*:*:*:* | 1 | OR | 16 | 20 |
| cpe:2.3:a:rockwellautomation:studio_5000_logix_designer:*:*:*:*:*:*:*:* | 1 | OR | 21.0 | |
| cpe:2.3:h:rockwellautomation:compact_guardlogix_5370:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compact_guardlogix_5380:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compactlogix_1768:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compactlogix_1769:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compactlogix_5370:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compactlogix_5380:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:compactlogix_5480:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:controllogix_5550:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:controllogix_5560:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:controllogix_5570:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:controllogix_5580:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:drivelogix_1794-l34:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:drivelogix_5560:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:drivelogix_5730:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:guardlogix_5570:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:rockwellautomation:softlogix_5800:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-056-03 | Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-22681 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22681 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:26:56 | Added to TrackCVE | |||
| 2022-12-05 23:04:37 | 2021-03-03T18:15Z | 2021-03-03T18:15:14 | CVE Published Date | updated |
| 2022-12-05 23:04:37 | 2022-04-25T16:16:25 | CVE Modified Date | updated | |
| 2022-12-05 23:04:37 | Undergoing Analysis | Vulnerability Status | updated | |
| 2023-02-16 15:10:35 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |