Advisory Details

May 18th, 2018

Advantech WebAccess NMS TFTP Unrestricted File Upload Remote Code Execution Vulnerability

CVE ID	CVE-2018-7505
CVSS SCORE	10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Advantech
AFFECTED PRODUCTS	WebAccess
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute code on vulnerable installations of Advantech WebAccess NMS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the TFTP service. The issue results from the lack of proper validation of user-supplied data, which can allow for the upload of arbitrary files. An attacker can leverage this vulnerability to execute code under the context of SYSTEM.
ADDITIONAL DETAILS	Advantech has issued an update to correct this vulnerability. More details can be found at: https://ics-cert.us-cert.gov/advisories/ICSA-18-135-01
DISCLOSURE TIMELINE	2017-12-08 - Vulnerability reported to vendor 2018-05-18 - Coordinated public release of advisory 2018-05-18 - Advisory Updated
CREDIT	rgod

BACK TO ADVISORIES