Fortinet FortiOS up to 5.4.4 Comments 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 was found in Fortinet FortiOS 5.4.0/5.4.1/5.4.2/5.4.3/5.4.4. It has been rated as problematic. The impacted element is an unknown function. This manipulation of the argument Comments causes cross site scripting. This vulnerability is handled as CVE-2017-7734. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fortinet FortiOS 5.4.0/5.4.1/5.4.2/5.4.3/5.4.4 (Firewall Software). It has been declared as problematic. Affected by this vulnerability is an unknown function. The manipulation of the argument Comments with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.4.0 through 5.4.4 allows attackers to execute unauthorized code or commands via Comments while saving Config Revisions.

The bug was discovered 06/15/2017. The weakness was released 06/15/2017 with Walmart's ISD Enterprise Security Testing Team as FG-IR-17-127 as confirmed advisory (Website). It is possible to read the advisory at fortiguard.com. The public release was coordinated with Fortinet. This vulnerability is known as CVE-2017-7734 since 04/12/2017. The attack can be launched remotely. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK. 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†). Entry connected to this vulnerability is available at VDB-102572. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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 +64 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-2017-7734 (🔍)
GCVE (CVE): GCVE-0-2017-7734
GCVE (VulDB): GCVE-100-102571
SecurityFocus: 99098 - FortiOS Multiple Cross Site Scripting Vulnerabilities
SecurityTracker: 1038705

See also: 🔍

Entryinfo

Created: 06/16/2017 17:33
Updated: 12/28/2020 21:16
Changes: 06/16/2017 17:33 (78), 01/11/2020 08:08 (5), 12/28/2020 21:16 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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