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lundi 4 mars 2019

SchoolCMS 2.3.1 Theme Upload admin.php Upload() privilege escalation

A vulnerability, which was classified as critical, has been found in SchoolCMS 2.3.1 (Content Management System). Affected by this issue is the function Upload() of the file admin.php?m=admin&c=theme&a=upload of the component Theme Upload Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability (PHP Code Execution). Using CWE to declare the problem leads to CWE-94. Impacted is confidentiality, integrity, and availability. CVE summarizes:

SchoolCMS version 2.3.1 allows file upload via the theme upload feature at admin.php?m=admin&c=theme&a=upload by using the .zip extension along with the _Static substring, changing the Content-Type to application/zip, and placing PHP code after the ZIP header. This ultimately allows execution of arbitrary PHP code in Public\Home\1_Static.php because of mishandling in the Application\Admin\Controller\ThemeController.class.php Upload() function.

The weakness was released 03/05/2019. This vulnerability is handled as CVE-2019-9572 since 03/05/2019. 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 03/06/2019).

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

CPE

CVSSv3

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2

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

Exploiting

Class: Privilege escalation / PHP Code Execution (CWE-94)
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligence

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Actions: 🔍

Countermeasures

Recommended: no mitigation known
0-Day Time: 🔒

Timeline

03/05/2019 Advisory disclosed
03/05/2019 CVE assigned
03/06/2019 VulDB entry created
03/06/2019 VulDB last update

Sources

CVE: CVE-2019-9572 (🔒)

Entry

Created: 03/06/2019 08:52 AM
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 197

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