BaserCMS up to 3.0.10 cross-site request forgery

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in BaserCMS up to 3.0.10. This affects an unknown part. The manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2016-4876. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in BaserCMS up to 3.0.10 (Content Management System). Affected is an unknown function. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. CVE summarizes:

Cross-site request forgery (CSRF) vulnerability in baserCMS version 3.0.10 and earlier allows remote attackers to hijack the authentication of administrators to execute arbitrary PHP code via unspecified vectors.

The bug was discovered 09/29/2016. The weakness was released 05/12/2017 by Shoji Baba with Mitsui Bussan Secure Directions, Inc. (Website). The advisory is shared for download at jvn.jp. This vulnerability is traded as CVE-2016-4876 since 05/17/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 225 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93217†). Entries connected to this vulnerability are available at VDB-101137, VDB-101138, VDB-101139 and VDB-101140. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Name

• BaserCMS

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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

05/17/2016 🔍
09/29/2016 +135 days 🔍
09/29/2016 +0 days 🔍
05/12/2017 +225 days 🔍
05/12/2017 +0 days 🔍
05/13/2017 +1 days 🔍
09/25/2020 +1231 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Shoji Baba
Organization: Mitsui Bussan Secure Directions, Inc.
Status: Not defined

CVE: CVE-2016-4876 (🔍)
GCVE (CVE): GCVE-0-2016-4876
GCVE (VulDB): GCVE-100-101136
SecurityFocus: 93217 - baserCMS Multiple HTML Injection and Cross Site Request Forgery Vulnerabilities
OSVDB: - CVE-2016-4876 - Basercms - Basercms - Medium

See also: 🔍

Entryinfo

Created: 05/13/2017 08:54
Updated: 09/25/2020 18:48
Changes: 05/13/2017 08:54 (58), 09/25/2020 18:48 (6)
Complete: 🔍
Cache ID: 216::103

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Discussion

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