Fortinet FortiOS/FortiProxy HTTP Daemon stack-based overflow

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.
6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Fortinet FortiOS and FortiProxy. It has been rated as critical. This impacts an unknown function of the component HTTP Daemon. This manipulation causes stack-based overflow. This vulnerability appears as CVE-2019-17656. The attack may be initiated remotely. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fortinet FortiOS and FortiProxy (Firewall Software) (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component HTTP Daemon. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 04/12/2021. The advisory is shared at fortiguard.com. This vulnerability is known as CVE-2019-17656. Technical details are unknown but a private exploit is available.

It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/16/2019 🔍
04/12/2021 +544 days 🔍
04/12/2021 +0 days 🔍
04/15/2021 +3 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: fortiguard.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-17656 (🔍)
GCVE (CVE): GCVE-0-2019-17656
GCVE (VulDB): GCVE-100-172753
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/12/2021 18:50
Updated: 04/15/2021 19:24
Changes: 04/12/2021 18:50 (39), 04/15/2021 19:17 (4), 04/15/2021 19:24 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!