Fortinet FortiOS up to 5.4.1 Password information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Fortinet FortiOS up to 5.4.1. The impacted element is an unknown function. Performing a manipulation results in information disclosure (Password). This vulnerability is cataloged as CVE-2016-7542. The attack must be initiated from a local position. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Fortinet FortiOS up to 5.4.1 (Firewall Software). This affects an unknown functionality. The manipulation with an unknown input leads to a information disclosure vulnerability (Password). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The weakness was shared 12/02/2016 by ryan as FG-IR-16-050 as confirmed advisory (Website). The advisory is shared at legacy.fortiguard.com. This vulnerability is uniquely identified as CVE-2016-7542. An attack has to be approached locally. The successful exploitation needs a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

Any administrator has access to all password hashes stored on the appliance, and may therefore be able to crack them to obtain the passwords of other local users, including super-admins.

The vulnerability scanner Nessus provides a plugin with the ID 97066 (Fortinet FortiOS 5.2.x < 5.2.10 / 5.4.1 < 5.4.2 Local Password Hash Disclosure (FG-IR-16-050)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls.

Upgrading to version 5.2.10 or 5.4.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Workarounds: 1. Use two-factor authentication in conjunction with local admins account or a remote authentication method like LDAP or RADIUS. 2. Use a strong password policy to prevent password from being cracked from a hash value.

The vulnerability is also documented in the databases at Tenable (97066), SecurityFocus (BID 94690†) and SecurityTracker (ID 1037394†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97066
Nessus Name: Fortinet FortiOS 5.2.x < 5.2.10 / 5.4.1 < 5.4.2 Local Password Hash Disclosure (FG-IR-16-050)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 103433
OpenVAS Name: FortiOS: Local Admin Password Hash Leak Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: FortiOS 5.2.10/5.4.2

Timelineinfo

09/09/2016 🔍
12/02/2016 +84 days 🔍
12/02/2016 +0 days 🔍
12/06/2016 +4 days 🔍
12/07/2016 +1 days 🔍
03/30/2017 +113 days 🔍
10/05/2022 +2015 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-16-050
Researcher: ryan
Status: Confirmed

CVE: CVE-2016-7542 (🔍)
GCVE (CVE): GCVE-0-2016-7542
GCVE (VulDB): GCVE-100-93969
SecurityFocus: 94690
SecurityTracker: 1037394 - Fortinet FortiGate/FortiOS Lets Local Users View Hashed Passwords

Entryinfo

Created: 12/07/2016 10:33
Updated: 10/05/2022 08:01
Changes: 12/07/2016 10:33 (47), 05/04/2017 12:54 (1), 03/07/2018 09:33 (20), 10/05/2022 07:50 (3), 10/05/2022 07:56 (11), 10/05/2022 08:01 (1)
Complete: 🔍
Committer: misc
Cache ID: 216:B61:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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