Fortinet FortiOS up to 5.2.3 DHCP Monitor Web UI cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Fortinet FortiOS up to 5.2.3. It has been declared as problematic. The affected element is an unknown function of the component DHCP Monitor Web UI. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2015-3626. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Fortinet FortiOS up to 5.2.3 (Firewall Software). This vulnerability affects some unknown processing of the component DHCP Monitor Web UI. The manipulation 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. CVE summarizes:

Cross-site scripting (XSS) vulnerability in the DHCP Monitor page the Web User Interface (WebUI) in Fortinet FortiOS before 5.2.4 on FortiGate devices allows remote attackers to inject arbitrary web script or HTML via a crafted hostname.

The weakness was disclosed 07/30/2015 by Ziv Kamir as FG-IR-15-018 as confirmed advisory (Website). The advisory is shared for download at fortiguard.com. This vulnerability was named CVE-2015-3626 since 04/30/2015. The exploitation appears to be easy. The attack can be initiated remotely. Required for exploitation is a single authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 5.2.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (105244) and SecurityTracker (ID 1033144†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiOS

Version

• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.2.10
• 5.2.11
• 5.2.12

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 103433
OpenVAS Name: FortiOS: Multiple Vulnerabillities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FortiOS 5.2.4

Timelineinfo

04/30/2015 🔍
07/30/2015 +91 days 🔍
07/30/2015 +0 days 🔍
07/31/2015 +1 days 🔍
08/11/2015 +11 days 🔍
03/07/2018 +939 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-15-018
Researcher: Ziv Kamir
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3626 (🔍)
GCVE (CVE): GCVE-0-2015-3626
GCVE (VulDB): GCVE-100-76852
X-Force: 105244 - Fortinet FortiGate/FortiOS DHCP Monitor WebUI cross-site scripting
SecurityTracker: 1033144 - Fortinet FortiGate/FortiOS Input Validation Flaw in DHCP Monitor WebUI Lets Remote Conduct Cross-Site Scripting Attacks

Entryinfo

Created: 07/31/2015 10:39
Updated: 03/07/2018 09:32
Changes: 07/31/2015 10:39 (54), 03/07/2018 09:32 (12)
Complete: 🔍
Cache ID: 216::103

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