Fortinet FortiClient 2.0/4.0.2/4.0.2012/4.3.3.445 Authentication credentials management

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Fortinet FortiClient 2.0/4.0.2/4.0.2012/4.3.3.445. This vulnerability affects unknown code of the component Authentication. Performing a manipulation results in credentials management. This vulnerability was named CVE-2013-4669. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Fortinet FortiClient 2.0/4.0.2/4.0.2012/4.3.3.445. It has been classified as problematic. This affects an unknown functionality of the component Authentication. The manipulation with an unknown input leads to a credentials management vulnerability. CWE is classifying the issue as CWE-255. This is going to have an impact on confidentiality. The summary by CVE is:

FortiClient before 4.3.5.472 on Windows, before 4.0.3.134 on Mac OS X, and before 4.0 on Android; FortiClient Lite before 4.3.4.461 on Windows; FortiClient Lite 2.0 through 2.0.0223 on Android; and FortiClient SSL VPN before 4.0.2258 on Linux proceed with an SSL session after determining that the server s X.509 certificate is invalid, which allows man-in-the-middle attackers to obtain sensitive information by leveraging a password transmission that occurs before the user warning about the certificate problem.

The weakness was presented 05/01/2013 by Cedric Tissieres and Philippe Oechslin as File 121480/For (Packetstorm). It is possible to read the advisory at packetstormsecurity.com. The public release was coordinated in cooperation with Fortinet. This vulnerability is uniquely identified as CVE-2013-4669 since 06/24/2013. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

Upgrading to version 4.3p11 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 59604†) and OSVDB (92907†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
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

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: FortiClient 4.3p11

Timelineinfo

12/21/2012 🔍
05/01/2013 +131 days 🔍
05/01/2013 +0 days 🔍
05/01/2013 +0 days 🔍
05/06/2013 +5 days 🔍
06/24/2013 +49 days 🔍
06/25/2013 +1 days 🔍
05/06/2018 +1776 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: File 121480/For
Researcher: Cedric Tissieres, Philippe Oechslin
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4669 (🔍)
GCVE (CVE): GCVE-0-2013-4669
GCVE (VulDB): GCVE-100-8583
SecurityFocus: 59604 - Fortinet FortiClient VPN Client SSL Certificate Validation Security Bypass Vulnerability
OSVDB: 92907

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

Entryinfo

Created: 05/06/2013 15:22
Updated: 05/06/2018 11:13
Changes: 05/06/2013 15:22 (56), 05/06/2018 11:13 (6)
Complete: 🔍
Committer: roga
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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