CVE-2021-3374 Path traversal in n/a
Attackers can read application source code via directory traversal in RStudio Shiny Server using encoded slashes.
- 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-2021-3374?
CVE-2021-3374 is a medium-severity path traversal vulnerability in n/a, published on 2 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.
Weakness: CWE-22
Which versions are affected by CVE-2021-3374?
It affects 1 product.
Products include Rstudio Shiny Server.
How do I fix CVE-2021-3374?
No fix has been published for CVE-2021-3374 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-2021-3374 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-3374 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-5c9r-9v3g-ggvp.