CVE-2023-5372NAS326 firmware OS Command Injection
The post-authentication command injection vulnerability in Zyxel NAS326 firmware versions through V5.21(AAZF.15)C0 and NAS542 firmware versions through V5.21(ABAG.12)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS)…
Published Jan 30, 2024 · Updated Aug 23, 2024 · Also known as TR-24-0073
Key Facts
Patch in the next maintenance window- CVE-2023-5372 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting NAS326 firmware (Zyxel), NAS542 firmware (Zyxel).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 28% probability of exploitation in the next 30 days.
- Fixed versions are available, including NAS326 firmware 5.21\(aazf.16\)c0, NAS542 firmware 5.21\(abag.13\)c0.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
28%
Higher than 98.1% of all scored CVEs
Exploit maturity
None known
ATLAS score
35/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
None known
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
The post-authentication command injection vulnerability in Zyxel NAS326 firmware versions through V5.21(AAZF.15)C0 and NAS542 firmware versions through V5.21(ABAG.12)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands by sending a crafted query parameter attached to the URL of an affected device’s web management interface.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| NAS326 firmwareZyxel | >= <= V5.21(AAZF.15)C0 | 5.21\(aazf.16\)c0 |
| NAS542 firmwareZyxel | >= <= V5.21(ABAG.12)C0 | 5.21\(abag.13\)c0 |
Patched Releases
NAS326 firmware
5.21\(aazf.16\)c0
NAS542 firmware
5.21\(abag.13\)c0
Timeline
Publicly disclosed
Jan 30, 2024
Last updated
Aug 23, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
FAQ
Common Questions.
The post-authentication command injection vulnerability in Zyxel NAS326 firmware versions through V5.21(AAZF.15)C0 and NAS542 firmware versions through V5.21(ABAG.12)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands by sending a crafted query paramete…
Affected: NAS326 firmware (Zyxel) versions >= <= V5.21(AAZF.15)C0; NAS542 firmware (Zyxel) versions >= <= V5.21(ABAG.12)C0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including NAS326 firmware 5.21\(aazf.16\)c0, NAS542 firmware 5.21\(abag.13\)c0.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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