CVE-2020-27637 Path traversal in n/a
Attackers can exploit path traversal in the R package manager to compromise servers during package installation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-27637?
CVE-2020-27637 is a critical path traversal vulnerability in n/a, published on 12 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The R programming language’s default package manager CRAN is affected by a path traversal vulnerability that can lead to server compromise. This vulnerability affects packages installed via the R CMD install cli command or the install.packages() function from the interpreter. Update to version 4.0.3
Weakness: CWE-22
Which versions are affected by CVE-2020-27637?
It affects 1 product.
Products include R-Project Cran.
How do I fix CVE-2020-27637?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-27637 being exploited?
There is no known exploitation of CVE-2020-27637 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-27637, GHSA-vw79-85j5-c56w, UBUNTU-CVE-2020-27637.