VDB-77560 · CVE-2015-5735 · ID 133398

Fortinet FortiClient up to 5.2.3 IOCTL Call 0x226108 Memory access control

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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Fortinet FortiClient up to 5.2.3. Affected is an unknown function of the component IOCTL Call Handler. Executing a manipulation of the argument 0x226108 can lead to access control (Memory). This vulnerability is registered as CVE-2015-5735. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fortinet FortiClient up to 5.2.3. It has been declared as problematic. This vulnerability affects an unknown function of the component IOCTL Call Handler. The manipulation of the argument 0x226108 with an unknown input leads to a access control vulnerability (Memory). The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The (1) mdare64_48.sys, (2) mdare32_48.sys, (3) mdare32_52.sys, and (4) mdare64_52.sys drivers in Fortinet FortiClient before 5.2.4 allows local users to write to arbitrary memory locations via a 0x226108 ioctl call.

The weakness was published 09/03/2015 (Website). The advisory is shared for download at securitytracker.com. This vulnerability was named CVE-2015-5735 since 08/04/2015. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 123870 (FortiClient Antivirus Multiple Security Vulnerabilities).

Upgrading to version 5.2.4 eliminates this vulnerability.

Similar entries are available at VDB-77554, VDB-77561 and VDB-77562. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Fortinet

Name

FortiClient

Version

License

free

Website

Vendor: https://www.fortinet.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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

Name: Memory
Class: Access control / Memory
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FortiClient 5.2.4

Timelineinfo

08/04/2015 🔍
09/03/2015 +30 days 🔍
09/03/2015 +0 days 🔍
09/04/2015 +1 days 🔍
06/14/2022 +2475 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: 133398⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5735 (🔍)
GCVE (CVE): GCVE-0-2015-5735
GCVE (VulDB): GCVE-100-77560
SecurityTracker: 1033439

See also: 🔍

Entryinfo

Created: 09/04/2015 10:21
Updated: 06/14/2022 09:19
Changes: 09/04/2015 10:21 (46), 10/29/2018 06:02 (8), 06/14/2022 09:19 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.