VDB-6535 · SA50638 · OSVDB 85657

Fortinet FortiOS 4.3.8 displaymessage Title 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.
3.9	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Fortinet FortiOS 4.3.8. Affected by this issue is the function displaymessage. This manipulation of the argument Title causes cross site scripting. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Fortinet FortiOS 4.3.8 (Firewall Software). Affected by this vulnerability is the function displaymessage. The manipulation of the argument title with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity.

The weakness was published 09/07/2012 by Benjamin Kunz Mejri as not defined advisory (Website). It is possible to read the advisory at vulnerability-lab.com. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 112 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.0 B064 eliminates this vulnerability. The upgrade is hosted for download at fortinet.com. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at OSVDB (85657†) and Secunia (SA50638†). Similar entry is available at VDB-6537. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Fortinet

Name

FortiOS

Version

4.3.8

License

commercial

Website

Vendor: https://www.fortinet.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: FortiOS 5.0 B064

Timelineinfo

05/10/2012 🔍
06/08/2012 +29 days 🔍
08/30/2012 +83 days 🔍
09/07/2012 +8 days 🔍
09/07/2012 +0 days 🔍
09/21/2012 +14 days 🔍
09/23/2012 +2 days 🔍
09/25/2012 +2 days 🔍
08/17/2018 +2152 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: vulnerability-lab.com
Researcher: Benjamin Kunz Mejri
Status: Not defined

GCVE (VulDB): GCVE-100-6535
Secunia: 50638 - Fortinet FortiOS (FortiGate) Two Cross-Site Scripting Vulnerabilities, Less Critical
OSVDB: 85657

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/25/2012 13:19
Updated: 08/17/2018 12:57
Changes: 09/25/2012 13:19 (58), 08/17/2018 12:57 (1)
Complete: 🔍
Committer: roga
Cache ID: 216:CC2:103