VDB-131431 · CVE-2018-17418 · GCVE-0-2018-17418

Monstra CMS 3.0.4 filesmanager.admin.php forbidden_types unrestricted upload

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Monstra CMS 3.0.4. This vulnerability affects unknown code of the file lugins\box\filesmanager\filesmanager.admin.php. This manipulation of the argument forbidden_types causes unrestricted upload. This vulnerability is handled as CVE-2018-17418. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Monstra CMS 3.0.4 (Content Management System) and classified as critical. Affected by this vulnerability is some unknown processing of the file lugins\box\filesmanager\filesmanager.admin.php. The manipulation of the argument forbidden_types with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Monstra CMS 3.0.4 allows remote attackers to execute arbitrary PHP code via a mixed-case file extension, as demonstrated by the 123.PhP filename, because plugins\box\filesmanager\filesmanager.admin.php mishandles the forbidden_types variable.

The bug was discovered 09/24/2018. The weakness was released 03/07/2019. This vulnerability is known as CVE-2018-17418 since 09/23/2018. The exploitation appears to be easy. The attack can be launched remotely. Required for exploitation is a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 164 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:lugins\box\filesmanager\filesmanager.admin.php it is possible to find vulnerable targets with Google Hacking.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Content Management System

Vendor

Monstra

Name

Version

3.0.4

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/23/2018 🔍
09/24/2018 +1 days 🔍
03/07/2019 +164 days 🔍
03/08/2019 +1 days 🔍
07/29/2023 +1604 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2018-17418 (🔍)
GCVE (CVE): GCVE-0-2018-17418
GCVE (VulDB): GCVE-100-131431

Entryinfo

Created: 03/08/2019 06:55
Updated: 07/29/2023 11:12
Changes: 03/08/2019 06:55 (55), 05/14/2020 14:27 (1), 07/29/2023 11:12 (3)
Complete: 🔍
Cache ID: 216::103