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CVE-2019-11021 Unrestricted file upload

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

admin/app/mediamanager in Schlix CMS 2.1.8-7 allows Authenticated Unrestricted File Upload, leading to remote code execution. NOTE: "While inadvertently allowing a PHP file to be uploaded via Media Manager was an oversight, it still requires an admin permission. We think it's pretty rare for an administrator to exploit a bug on his/her own site to own his/her own site.

CWE: CWE-434
CVSS v26.5
AV:N/AC:L/AU:S/C:P/I:P/A:P
CVSS v37.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
https://gurelahmet.com/schlix-cms-v2-1-8-7-authenticated-unrestricted-file-upload-to-rce/
https://www.schlix.com/html/schlix-cms-downloads.html
https://www.incibe-cert.es/en/early-warning/vulnerabilities/cve-2019-11021
https://vuldb.com/?id.144129
https://www.schlix.com/news/security/cve-2019-11021-for-older-schlix-cms-v2-1-8-7-november-2018.html
Affected Vendors

Schlix - (1)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Unrestricted file upload

CVSS Scores as calculated by PRIOnengine
CVSS v26.5
AV:N/AC:L/AU:S/C:P/I:P/A:P
CVSS v37.2
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
MITRE CWE Top 25

Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs

Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

-

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1608 - Stage Capabilities
T1587.004 - Develop Capabilities (Exploits)
T1505.003 - Server Software Component (Web Shell)
T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1210 - Exploitation of Remote Services
T1203 - Exploitation for Client Execution
T1190 - Exploit Public-Facing Application
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

-

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-8 - Cross Site Scripting