VDB-97955 · CVE-2017-6902 · OpenVAS 802129

b2evolution 6.8.8 File Upload admin.php 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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in b2evolution 6.8.8. Affected by this vulnerability is an unknown functionality of the file admin.php of the component File Upload. The manipulation leads to unrestricted upload. This vulnerability is referenced as CVE-2017-6902. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in b2evolution 6.8.8 (Content Management System). It has been rated as critical. This issue affects an unknown code of the file admin.php of the component File Upload. The manipulation with an unknown input 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:

Unrestricted file upload vulnerability in 'file upload' modules in b2evolution 6.8.8 allows authenticated users to upload malicious code (shell) by visiting the admin.php?ctrl=files page, even though the system has restricted the .php extension.

The bug was discovered 03/14/2017. The weakness was published 03/14/2017 (Website). It is possible to read the advisory at rungga.blogspot.co.id. The identification of this vulnerability is CVE-2017-6902 since 03/14/2017. The attack may be initiated remotely. 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.

By approaching the search of inurl: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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Content Management System

Name

b2evolution

Version

6.8.8

License

free

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

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

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: 🔍

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: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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

OpenVAS ID: 802129
OpenVAS Name: b2evolution File Upload Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/14/2017 🔍
03/14/2017 +0 days 🔍
03/14/2017 +0 days 🔍
03/15/2017 +1 days 🔍
08/19/2020 +1253 days 🔍

Sourcesinfo

Advisory: rungga.blogspot.co.id
Status: Not defined

CVE: CVE-2017-6902 (🔍)
GCVE (CVE): GCVE-0-2017-6902
GCVE (VulDB): GCVE-100-97955
OSVDB: - b2evolution file upload

Entryinfo

Created: 03/15/2017 08:07
Updated: 08/19/2020 11:46
Changes: 03/15/2017 08:07 (38), 08/19/2020 11:46 (8)
Complete: 🔍
Cache ID: 216::103