CVE-2017-16720: Advantech WebAccess webvrpcs Command Injection Remote Code Execution Vulnerability
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this functionality to execute code under the context of Administrator.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2017-16720?
CVE-2017-16720 is classified as a high severity vulnerability due to its potential for arbitrary code execution.
What systems are affected by CVE-2017-16720?
CVE-2017-16720 affects Advantech WebAccess versions 8.3.2 and earlier.
How do I fix CVE-2017-16720?
To fix CVE-2017-16720, upgrade to a version of Advantech WebAccess that is later than 8.3.2.
What type of vulnerability is CVE-2017-16720?
CVE-2017-16720 is a Path Traversal vulnerability that allows attackers to access files in the directory structure of the device.
Can CVE-2017-16720 be exploited remotely?
Yes, CVE-2017-16720 can be exploited remotely by attackers to execute arbitrary code on affected systems.