CVE-2020-3926 ServiSign Windows Versions- Arbitrary File Access
Attackers can access arbitrary files on the target system by exploiting an arbitrary file access vulnerability in the ServiSign security plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3926?
CVE-2020-3926 is a medium-severity path traversal vulnerability in CHANGING ServiSign Windows versions, published on 3 Feb 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.
Weakness: CWE-552
Which versions are affected by CVE-2020-3926?
It affects 1 product.
Products include Changingtec Servisign.
How do I fix CVE-2020-3926?
No fix has been published for CVE-2020-3926 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-2020-3926 being exploited?
There is no known exploitation of CVE-2020-3926 in the wild and no public exploit code.
Other vulnerabilities in CHANGING ServiSign Windows versions
- CVE-2022-46304 ChangingTec ServiSign - Command Injection
- CVE-2022-46306 ChangingTec ServiSign - Path Traversal
- CVE-2020-3925 ServiSign Windows Versions- Remote Code Execution via LoadLibrary
- CVE-2020-3927 ServiSign Windows Versions- Arbitrary File Deletion
- CVE-2022-46305 ChangingTec ServiSign - Path Traversal
Sources
Also known as GHSA-77x4-9g68-7hxr.