OpenPLC ScadaBR system_settings.shtm cross site scripting

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CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.06

A vulnerability was found in OpenPLC ScadaBR (SCADA Software) (affected version not known) and classified as problematic. Affected by this issue is an unknown function of the file system_settings.shtm. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. Impacted is integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors. CVE summarizes:

OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.

The weakness was presented 06/12/2021. The advisory is available at forum.scadabr.com.br. This vulnerability is handled as CVE-2021-26829 since 02/05/2021. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation requires a simple authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

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: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-79
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

02/05/2021 CVE assigned
06/12/2021 +126 days Advisory disclosed
06/12/2021 +0 days VulDB entry created
06/14/2021 +2 days VulDB last update

Sourcesinfoedit

Advisory: forum.scadabr.com.br
Status: Confirmed

CVE: CVE-2021-26829 (🔒)

Entryinfoedit

Created: 06/12/2021 07:26 AM
Updated: 06/14/2021 09:18 AM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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