CVE-2019-12479 Path traversal in n/a
Attackers can read or write arbitrary files outside the base path if user-supplied filenames are not sanitized in the TwentyTwenty Storage library.
- 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-2019-12479?
CVE-2019-12479 is a critical path traversal vulnerability in n/a, published on 13 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in 20|20 Storage 2.11.0. A Path Traversal vulnerability in the TwentyTwenty.Storage library in the LocalStorageProvider allows creating and reading files outside of the specified basepath. If the application using this library does not sanitize user-supplied filenames, then this issue may be exploited to read or write arbitrary files. This affects LocalStorageProvider.cs.
Weakness: CWE-22
Which versions are affected by CVE-2019-12479?
It affects 1 product.
Products include Twentytwenty.storage Project Twentytwenty.storage.
How do I fix CVE-2019-12479?
No fix has been published for CVE-2019-12479 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-2019-12479 being exploited?
There is no known exploitation of CVE-2019-12479 in the wild and no public exploit code.
Sources
Also known as GHSA-56jj-mw3h-pcfg.