CVE-2017-16720 Path traversal in Advantech WebAccess
An attacker can access files within the directory structure of Advantech WebAccess devices via a path traversal vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16720?
CVE-2017-16720 is a critical path traversal vulnerability in Advantech Webaccess, published on 5 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2017-16720?
It affects 1 product.
Products include Advantech Webaccess.
How do I fix CVE-2017-16720?
No fix has been published for CVE-2017-16720 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-16720 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-16720 exists.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Advantech Webaccess
- CVE-2014-9208 Multiple stack-based buffer overflows in unspecified DLL files in Advantech WebAccess before 8.0.1 allow remote attackers to execute arbitra
- CVE-2021-33023 Advantech WebAccess
- CVE-2021-38389 Advantech WebAccess
- CVE-2021-38408 Memory corruption in Advantech WebAccess
- CVE-2020-12019 Memory corruption in WebAccess Node
Sources
Also known as GHSA-fh38-p8hv-hjcv.