Fortinet FortiClient up to 5.2.3 IOCTL Call 0x22608C Kernel Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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2.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Fortinet FortiClient up to 5.2.3. This issue affects some unknown processing of the component IOCTL Call Handler. Executing a manipulation of the argument 0x22608C can lead to information disclosure (Kernel Memory). The identification of this vulnerability is CVE-2015-4077. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Fortinet FortiClient up to 5.2.3. This vulnerability affects an unknown functionality of the component IOCTL Call Handler. The manipulation of the argument 0x22608C with an unknown input leads to a information disclosure vulnerability (Kernel Memory). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. 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 read arbitrary kernel memory via a 0x22608C ioctl call.

The weakness was shared 09/03/2015 (Website). The advisory is available at securitytracker.com. This vulnerability was named CVE-2015-4077 since 05/22/2015. The exploitation appears to be difficult. Local access is required to approach this attack. The successful exploitation needs a single authentication. Technical details and also a public exploit are known. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

A public exploit has been developed by sickness / mschenk and been published 4 years after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. 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.

The vulnerability is also documented in the vulnerability database at Exploit-DB (45149). The entries VDB-77560, VDB-77561 and VDB-77562 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.5
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.5
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Kernel Memory
Class: Information disclosure / Kernel Memory
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: sickness / mschenk
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: FortiClient 5.2.4

Timelineinfo

05/22/2015 🔍
09/03/2015 +104 days 🔍
09/03/2015 +0 days 🔍
09/04/2015 +1 days 🔍
08/05/2018 +1065 days 🔍
08/05/2018 +0 days 🔍
07/21/2025 +2542 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: 133398⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4077 (🔍)
GCVE (CVE): GCVE-0-2015-4077
GCVE (VulDB): GCVE-100-77554
SecurityTracker: 1033439

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/04/2015 10:20
Updated: 07/21/2025 01:04
Changes: 09/04/2015 10:20 (48), 10/29/2018 06:02 (15), 06/14/2022 08:48 (4), 07/21/2025 01:04 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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