VDB-146825 · CVE-2019-19684 · GCVE-0-2019-19684

Nop Solution Ltd nopCommerce 4.2.0 on ASP.NET File Upload PluginController.cs Custom Plugin 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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Nop Solution Ltd nopCommerce 4.2.0 on ASP.NET. It has been rated as critical. This affects an unknown function of the file Presentation/Nop.Web/Admin/Areas/Controllers/PluginController.cs of the component File Upload. The manipulation as part of Custom Plugin leads to unrestricted upload. This vulnerability is referenced as CVE-2019-19684. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Nop Solution Ltd nopCommerce 4.2.0 on ASP.NET. It has been rated as critical. This issue affects an unknown function of the file Presentation/Nop.Web/Admin/Areas/Controllers/PluginController.cs of the component File Upload. The manipulation as part of a Custom Plugin leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

nopCommerce v4.2.0 allows privilege escalation via file upload in Presentation/Nop.Web/Admin/Areas/Controllers/PluginController.cs via Admin/FacebookAuthentication/Configure because it is possible to upload a crafted Facebook Auth plugin.

The bug was discovered 06/19/2019. The weakness was published 12/09/2019 by Alessandro Magnosi (d3adc0de) (GitHub Repository). The advisory is shared at github.com. The identification of this vulnerability is CVE-2019-19684 since 12/09/2019. The attack may be initiated remotely. The successful exploitation requires a simple authentication. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

A public exploit has been developed by Alessandro Magnosi (d3adc0de) in Python. The exploit is available at github.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 173 days. During that time the estimated underground price was around $0-$5k.

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

Similar entry is available at VDB-146805. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Nop Solution Ltd

Name

nopCommerce

Version

4.2.0

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: 🔍
Access: Public
Status: Functional
Author: Alessandro Magnosi (d3adc0de)
Programming Language: 🔍
Download: 🔍

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

06/19/2019 🔍
12/09/2019 +173 days 🔍
12/09/2019 +0 days 🔍
12/10/2019 +1 days 🔍
12/10/2019 +0 days 🔍

Sourcesinfo

Advisory: github.com
Researcher: Alessandro Magnosi (d3adc0de)
Status: Confirmed

CVE: CVE-2019-19684 (🔍)
GCVE (CVE): GCVE-0-2019-19684
GCVE (VulDB): GCVE-100-146825
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/10/2019 09:01
Updated: 12/10/2019 14:31
Changes: 12/10/2019 09:01 (40), 12/10/2019 14:29 (1), 12/10/2019 14:30 (8), 12/10/2019 14:31 (17)
Complete: 🔍
Committer: Anonymous User
Cache ID: 216::103

Submitinfo

Accepted

Submit #131: nopCommerce up to 4.2.0 FileRoxyFilemanService.cs Arbitrary File Download/Upload (by github.com)
Submit #132: nopCommerce up to 4.2.0 Privilege Escalation via Plugin Upload (by github.com)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.