Fortinet FortiClient up to 6.2.8/6.4.6/7.0.0 on Windows Webfilter Control improper authorization
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.2 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in Fortinet FortiClient up to 6.2.8/6.4.6/7.0.0 on Windows. Affected by this vulnerability is an unknown functionality of the component Webfilter Control. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2021-36167. The attack can only be performed from a local environment. No exploit is available.
Details
A vulnerability was found in Fortinet FortiClient up to 6.2.8/6.4.6/7.0.0 on Windows and classified as critical. Affected by this issue is an unknown function of the component Webfilter Control. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.
The weakness was published 12/09/2021 as FG-IR-20-127. The advisory is shared for download at fortiguard.com. This vulnerability is handled as CVE-2021-36167 since 07/06/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Vendor
Name
Version
License
Website
- Vendor: https://www.fortinet.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.2VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.9
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CNA Base Score: 4.3
CNA Vector (Fortinet, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/06/2021 🔍12/09/2021 🔍
12/09/2021 🔍
05/12/2022 🔍
Sources
Vendor: fortinet.comAdvisory: FG-IR-20-127
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-36167 (🔍)
GCVE (CVE): GCVE-0-2021-36167
GCVE (VulDB): GCVE-100-187880
Entry
Created: 12/09/2021 12:48Updated: 05/12/2022 12:27
Changes: 12/09/2021 12:48 (48), 12/15/2021 08:37 (2), 12/15/2021 08:40 (18), 05/12/2022 12:27 (2)
Complete: 🔍
Cache ID: 216::103
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