Fortinet FortiOS up to 5.2/5.4.8/5.6.0 fnsysctl access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.5 | $0-$5k | 0.00 |
A vulnerability was found in Fortinet FortiOS up to 5.2/5.4.8/5.6.0 (Firewall Software). It has been classified as critical. Affected is an unknown code block of the component fnsysctl. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute unauthorized binary program contained on an USB drive plugged into a FortiGate via linking the aforementioned binary program to a command that is allowed to be run by the fnsysctl CLI command.
The bug was discovered 05/18/2018. The weakness was presented 05/24/2018 (Website). The advisory is available at fortiguard.com. This vulnerability is traded as CVE-2017-14187 since 09/07/2017. Local access is required to approach this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The vulnerability scanner Nessus provides a plugin with the ID 110415 (Fortinet FortiGate <= 5.2.x / 5.4.x < 5.4.9 / 5.6.x < 5.6.3 Multiple Vulnerabilities (FG-IR-17-231, FG-IR-17-245 and FG-IR-17-172)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43665 (Fortigate FortiOS Local Privilege Escalation Vulnerability (FG-IR-17-245)).
Upgrading to version 5.4.9 or 5.6.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (110415). See 110672 and 118205 for similar entries.
Product
Type
Vendor
Name
Version
- 5.0
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.0.6
- 5.0.7
- 5.0.8
- 5.0.9
- 5.1
- 5.2
- 5.2.0
- 5.2.1
- 5.2.2
- 5.2.3
- 5.2.4
- 5.2.5
- 5.2.6
- 5.2.8
- 5.2.9
- 5.2.10
- 5.2.11
- 5.2.12
- 5.4.0
- 5.4.1
- 5.4.2
- 5.4.3
- 5.4.4
- 5.4.5
- 5.4.6
- 5.4.7
- 5.4.8
- 5.4.9
- 5.6.0
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.7VulDB Meta Temp Score: 5.6
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.2
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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VulDB Reliability: 🔍
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Exploiting
Class: Access controlCWE: CWE-264
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 110415
Nessus Name: Fortinet FortiGate <= 5.2.x / 5.4.x < 5.4.9 / 5.6.x < 5.6.3 Multiple Vulnerabilities (FG-IR-17-231, FG-IR-17-245 and FG-IR-17-172)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: FortiOS 5.4.9/5.6.3
Timeline
09/07/2017 🔍05/18/2018 🔍
05/18/2018 🔍
05/18/2018 🔍
05/24/2018 🔍
05/24/2018 🔍
05/25/2018 🔍
05/25/2018 🔍
06/08/2018 🔍
02/09/2020 🔍
Sources
Vendor: fortinet.comAdvisory: fortiguard.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-14187 (🔍)
SecurityTracker: 1040983
SecurityFocus: 104312 - Fortinet FortiOS CVE-2017-14187 Local Privilege Escalation Vulnerability
See also: 🔍
Entry
Created: 05/25/2018 08:33Updated: 02/09/2020 09:53
Changes: 05/25/2018 08:33 (74), 02/09/2020 09:53 (5)
Complete: 🔍
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