CVE-2020-7882 anySign directory traversal vulnerability
Attackers can exploit path traversal in anySign4PC to view authorization certificates and delete files.
- 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-2020-7882?
CVE-2020-7882 is a high-severity path traversal vulnerability in Hancomwith anySign4PC, published on 22 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Using the parameter of getPFXFolderList function, attackers can see the information of authorization certification and delete the files. It occurs because the parameter contains path traversal characters(ie. '../../../')
Which versions are affected by CVE-2020-7882?
It affects 1 product.
Products include Hancom Anysign4pc.
How do I fix CVE-2020-7882?
No fix has been published for CVE-2020-7882 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-2020-7882 being exploited?
There is no known exploitation of CVE-2020-7882 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-3h35-4jmf-3v47.