CVE-2017-18372

published 2019-05-02

CVE-2017-18372: The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has a command injection vulnerability in the Time Setting function, which…

Priority P2 70 high 8.8 CVSS 3.0

AV N AC L PR L UI N S U C H I H A H

EXPLOIT

The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has a command injection vulnerability in the Time Setting function, which is only accessible by an authenticated user. The vulnerability is in the tools_time.asp page and can be exploited through the uiViewSNTPServer parameter. Authentication can be achieved by exploiting CVE-2017-18373.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
billion	5200w-t_firmware	—	—
zyxel	p660hn-t1a_v1_firmware	—	—
zyxel	p660hn-t1a_v2_firmware	—	—

Detection & IOCs extracted from sources · hover to see the quote

url tools_time.asp↗

other uiViewSNTPServer↗

• → Monitor HTTP requests targeting the tools_time.asp page on Billion 5200W-T routers for shell metacharacters or command injection payloads in the uiViewSNTPServer parameter. ↗
• → The Metasploit module attempts unauthenticated injection first, then falls back to authenticated injection — look for sequential exploit attempts against both injection vectors on the same source IP. ↗
• → Exploitation of CVE-2017-18372 (authenticated command injection) may be preceded by exploitation of CVE-2017-18373 for authentication — correlate authentication events with subsequent Time Setting page access. ↗
• → Scope detection broadly to Billion 5200W-T routers beyond Thailand/TrueOnline deployments, as other firmware distributions may also be vulnerable. ↗

• · The Metasploit module was tested only in an emulated environment, not on live hardware, which may affect reliability of detection signatures derived from it. ↗

CVSS provenance

nvd v3.0 8.8 HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 9.0 CRITICAL AV:N/AC:L/Au:S/C:C/I:C/A:C

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