| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as critical has been found in Zyxel ATP, USG FLEX, USG FLEX 50, USG20-VPN, NWA50AX, WAC500, WAX300H and WBE660S. This affects an unknown part. The manipulation results in os command injection. This vulnerability is cataloged as CVE-2023-6398. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.
Details
A vulnerability classified as critical has been found in Zyxel ATP, USG FLEX, USG FLEX 50, USG20-VPN, NWA50AX, WAC500, WAX300H and WBE660S (Network Encryption Software). Affected is an unknown part. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, NWA50AX firmware versions through 6.29(ABYW.3), WAC500 firmware versions through 6.65(ABVS.1), WAX300H firmware versions through 6.60(ACHF.1), and WBE660S firmware versions through 6.65(ACGG.1) could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP.
The weakness was shared 02/20/2024. The advisory is shared for download at zyxel.com. This vulnerability is traded as CVE-2023-6398 since 11/30/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.zyxel.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.1
VulDB Base Score: 7.2
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 7.2
CNA Vector (Zyxel Corporation): 🔍
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 |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
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: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/30/2023 🔍02/20/2024 🔍
02/20/2024 🔍
01/21/2025 🔍
Sources
Vendor: zyxel.comAdvisory: zyxel.com
Status: Confirmed
CVE: CVE-2023-6398 (🔍)
GCVE (CVE): GCVE-0-2023-6398
GCVE (VulDB): GCVE-100-254124
Entry
Created: 02/20/2024 07:25Updated: 01/21/2025 20:46
Changes: 02/20/2024 07:25 (48), 01/21/2025 20:46 (16)
Complete: 🔍
Cache ID: 216::103
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