Fortinet FortiOS up to 5.4.4 Groups cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Fortinet FortiOS. This affects an unknown function. Such manipulation of the argument Groups leads to cross site scripting. This vulnerability is uniquely identified as CVE-2017-7735. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Fortinet FortiOS (Firewall Software). It has been rated as problematic. Affected by this issue is an unknown functionality. The manipulation of the argument Groups with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4 allows attackers to execute unauthorized code or commands via the "Groups" input while creating or editing User Groups.

The bug was discovered 06/15/2017. The weakness was disclosed 06/15/2017 with Walmart's ISD Enterprise Security Testing Team as FG-IR-17-127 as confirmed advisory (Website). The advisory is shared for download at fortiguard.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2017-7735 since 04/12/2017. The attack may be launched remotely. The successful exploitation needs a simple authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

Two XSS vulnerabilities were reported to us affecting FortiOS that can be exploited to load and run a remote (malicious) Javascript in a logged in browser.

The vulnerability scanner Nessus provides a plugin with the ID 100998 (Fortinet FortiOS 5.2.x / 5.3.x / 5.4.x < 5.4.5 Multiple XSS (FG-IR-17-127)), 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.

Upgrading to version 5.4.5 or 5.6.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100998), SecurityFocus (BID 99098†) and SecurityTracker (ID 1038705†). The entry VDB-102571 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
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

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100998
Nessus Name: Fortinet FortiOS 5.2.x / 5.3.x / 5.4.x < 5.4.5 Multiple XSS (FG-IR-17-127)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: FortiOS 5.4.5/5.6.0

Timelineinfo

04/12/2017 🔍
06/15/2017 +63 days 🔍
06/15/2017 +0 days 🔍
06/15/2017 +0 days 🔍
06/15/2017 +0 days 🔍
06/16/2017 +1 days 🔍
06/16/2017 +0 days 🔍
06/23/2017 +7 days 🔍
09/11/2017 +80 days 🔍
12/28/2020 +1204 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-17-127
Researcher: Walmart's ISD Enterprise Security Testing
Organization: Walmart's ISD Enterprise Security Testing Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2017-7735 (🔍)
GCVE (CVE): GCVE-0-2017-7735
GCVE (VulDB): GCVE-100-102572
SecurityFocus: 99098
SecurityTracker: 1038705

See also: 🔍

Entryinfo

Created: 06/16/2017 17:33
Updated: 12/28/2020 21:18
Changes: 06/16/2017 17:33 (77), 01/11/2020 08:10 (3), 12/28/2020 21:18 (4)
Complete: 🔍
Cache ID: 216::103

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