CVE-2020-12026 Path traversal in Advantech WebAccess Node
A low-privilege user can exploit relative path traversal to overwrite files outside the application's control in Advantech WebAccess Node.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-12026?
CVE-2020-12026 is a high-severity path traversal vulnerability in Advantech Webaccess, published on 8 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow a low privilege user to overwrite files outside the application’s control.
Which versions are affected by CVE-2020-12026?
It affects 1 product.
Products include Advantech Webaccess.
How do I fix CVE-2020-12026?
No fix has been published for CVE-2020-12026 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-2020-12026 being exploited?
There is no known exploitation of CVE-2020-12026 in the wild and no public exploit code.
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-5jgc-4rv5-547g.