CVE-2017-183705200w-T Firmware OS Command Injection
The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user.
Published May 2, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2017-18370 is a high-severity vulnerability (CVSS 8.8 v3) affecting 5200w-T Firmware (Billion), P660hn-T1a V1 Firmware (Zyxel), P660hn-T1a V2 Firmware (Zyxel).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 24% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
24%
Higher than 97.8% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
60/100
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
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
3
Reports of active use
Advisories And Exploit References
Description
The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user. The vulnerability is in the logSet.asp page and can be exploited through the ServerIP parameter. Authentication can be achieved by exploiting CVE-2017-18371.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| 5200w-T FirmwareBillion | 7.3.8.0 | n/a |
| P660hn-T1a V1 FirmwareZyxel | 7.3.37.6 | n/a |
| P660hn-T1a V2 FirmwareZyxel | 7.3.37.6 | n/a |
Timeline
Publicly disclosed
May 2, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryunit42.paloaltonetworks.com · new-mirai-variant-targets-enterprise-wireless-p…
- exploitMSF trueonline_p660hn_v2_rce.rb
- exploitraw.githubusercontent.com · zyxel_trueonline.txt
- exploitseclists.org · 40
- exploitssd-disclosure.com · 2910
FAQ
Common Questions.
The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user.
Affected: 5200w-T Firmware (Billion) versions 7.3.8.0; P660hn-T1a V1 Firmware (Zyxel) versions 7.3.37.6; P660hn-T1a V2 Firmware (Zyxel) versions 7.3.37.6. 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.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2017-18370 On Your Attack Surface?
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