CVE-2021-34570
Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are prone to a DoS attack through special crafted JSON requests.
Múltiples dispositivos de control Phoenix Contact PLCnext en versiones anteriores a 2021.0.5 LTS, son propensos a un ataque DoS mediante peticiones JSON especialmente diseñadas
*Credits:
The vulnerability was discovered by Oliver Carrigan of Dionach. We kindly appreciate the coordinated disclosure of these vulnerabilities by the finder. PHOENIX CONTACT thanks CERT@VDE for the coordination and support with this publication.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-10 CVE Reserved
- 2021-09-27 CVE Published
- 2024-04-18 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://cert.vde.com/en/advisories/VDE-2021-029 | 2022-07-28 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Technology Starterkit Firmware Search vendor "Phoenixcontact" for product "Plcnext Technology Starterkit Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Plcnext Technology Starterkit Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Technology Starterkit Search vendor "Phoenixcontact" for product "Plcnext Technology Starterkit" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Starterkit Firmware Search vendor "Phoenixcontact" for product "Axc F 2152 Starterkit Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Axc F 2152 Starterkit Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Starterkit Search vendor "Phoenixcontact" for product "Axc F 2152 Starterkit" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Rfc 4072s Firmware Search vendor "Phoenixcontact" for product "Rfc 4072s Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Rfc 4072s Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Rfc 4072s Search vendor "Phoenixcontact" for product "Rfc 4072s" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Axc F 3152 Firmware Search vendor "Phoenixcontact" for product "Axc F 3152 Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Axc F 3152 Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 3152 Search vendor "Phoenixcontact" for product "Axc F 3152" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Axc F 1152 Firmware Search vendor "Phoenixcontact" for product "Axc F 1152 Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Axc F 1152 Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 1152 Search vendor "Phoenixcontact" for product "Axc F 1152" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Firmware Search vendor "Phoenixcontact" for product "Axc F 2152 Firmware" | < 2021.0.5 Search vendor "Phoenixcontact" for product "Axc F 2152 Firmware" and version " < 2021.0.5" | lts |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Search vendor "Phoenixcontact" for product "Axc F 2152" | - | - |
Safe
|