PT-2019-9470 · Monstra · Monstra Cms

Published 2019-03-07 · Updated 2019-03-08 · CVE-2018-17418

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Monstra CMS version 3.0.4

Description The issue allows remote attackers to execute arbitrary PHP code via a mixed-case file extension. This is because the forbidden types variable is mishandled in the pluginsboxfilesmanagerfilesmanager.admin.php file. For example, a filename like 123.PhP can be used to exploit this issue.

Recommendations For Monstra CMS version 3.0.4, consider restricting the upload of files with mixed-case PHP extensions as a temporary workaround until a patch is available. Avoid using the forbidden types variable in the filesmanager.admin.php file until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2018-17418

Affected Products

Monstra Cms

References · 3

• 🔥 https://github.com/AlwaysHereFight/monstra_cms-3.0.4--getshell/blob/master/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-17418 · Security Note
• https://osv.dev/vulnerability/CVE-2018-17418 · Vendor Advisory