Fortinet FortiWeb 6.4.0/6.4.1 Certificate stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Fortinet FortiWeb 6.4.0/6.4.1. Affected by this vulnerability is an unknown functionality of the component Certificate Handler. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2021-41027. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Fortinet FortiWeb 6.4.0/6.4.1. Affected is some unknown functionality of the component Certificate Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as 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). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/08/2021 as FG-IR-21-134. The advisory is available at fortiguard.com. This vulnerability is traded as CVE-2021-41027 since 09/13/2021. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/27/2024).

The vulnerability scanner Nessus provides a plugin with the ID 209741 (Fortinet FortiWeb (FG-IR-21-134)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (209741). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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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: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.3
CNA Vector (Fortinet, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209741
Nessus Name: Fortinet FortiWeb (FG-IR-21-134)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/13/2021 🔍
12/08/2021 +86 days 🔍
12/08/2021 +0 days 🔍
10/27/2024 +1054 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-21-134
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41027 (🔍)
GCVE (CVE): GCVE-0-2021-41027
GCVE (VulDB): GCVE-100-187770

Entryinfo

Created: 12/08/2021 17:41
Updated: 10/27/2024 03:24
Changes: 12/08/2021 17:41 (48), 12/11/2021 10:09 (2), 12/11/2021 10:15 (18), 10/27/2024 03:24 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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