A vulnerability has been found in Dasan H660RM 1.03-0022 and classified as critical. Affected by this vulnerability is an unknown code of the file diag_tool.cgi of the component Ping Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 03/25/2019. The weakness was published 03/25/2019 by Krzysztof Burghardt as Multiple vulnerabilities in DASAN H660RM GPON router firmware as not defined mailinglist post (Bugtraq). The advisory is shared at seclists.org. This vulnerability is known as CVE-2019-9974 since 03/24/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Additional details are provided at blog.burghardt.pl. Similar entries are available at 132746 and 132747.

Productinfo

Vendor

• Dasan

Name

• H660RM

Version

• 1.03-0022

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Discussion