Vulnerability CVE-2019-9974
Published: 2019-04-11

Description:
diag_tool.cgi on DASAN H660RM GPON routers with firmware 1.03-0022 lacks any authorization check, which allows remote attackers to run a ping command via a GET request to enumerate LAN devices or crash the router with a DoS attack.

Type:

CWE-285

 (Improper Authorization)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial
Affected software
Dasannetworks -> H660rm firmware 

 References:
http://packetstormsecurity.com/files/152232/DASAN-H660RM-Information-Disclosure-Hardcoded-Key.html
https://blog.burghardt.pl/2019/03/diag_tool-cgi-on-dasan-h660rm-devices-with-firmware-1-03-0022-allows-spawning-ping-processes-without-any-authorization-leading-to-information-disclosure-and-dos-attacks/
https://seclists.org/bugtraq/2019/Mar/41
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