CVE-2021-3374
5.3 · MEDIUMOverview
CVE-2021-3374 is a medium-severity vulnerability affecting rstudio shiny_server. It was published on April 2, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.
Remediation
Check the references section for vendor advisories and patches from rstudio. Update shiny_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| rstudio | shiny_server | >= 0, < 1.5.16 | Affected |
Frequently Asked Questions
What is CVE-2021-3374?
CVE-2021-3374 is a medium-severity vulnerability affecting rstudio shiny_server. It was published on April 2, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2021-3374?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-3374?
Check the references section for vendor advisories and patches from rstudio. Update shiny_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-3374?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-3374 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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