OpenPLC Webserver v3 Hardware Layer Code Box /hardware command injection

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability classified as critical has been found in OpenPLC Webserver v3 (Web Server). Affected is some unknown processing of the file /hardware of the component Hardware Layer Code Box. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-77. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary code via the "Hardware Layer Code Box" component on the "/hardware" page of the application.

The weakness was presented 08/04/2021 as 162563. The advisory is available at packetstormsecurity.com. This vulnerability is traded as CVE-2021-31630 since 04/23/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. Required for exploitation is a authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/07/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-77
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

04/23/2021 CVE assigned
08/04/2021 +103 days Advisory disclosed
08/04/2021 +0 days VulDB entry created
08/07/2021 +3 days VulDB last update

Sourcesinfoedit

Advisory: 162563
Status: Not defined

CVE: CVE-2021-31630 (🔒)

Entryinfoedit

Created: 08/04/2021 10:52 AM
Updated: 08/07/2021 02:15 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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