PT-2021-20314 · Rstudio · Rstudio Shiny Server

Published 2021-04-02 · Updated 2021-04-08 · CVE-2021-3374

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: RStudio Shiny Server versions prior to 1.5.16

Description: The issue allows attackers to read the application source code through directory traversal, involving an encoded slash.

Recommendations: For versions prior to 1.5.16, update to version 1.5.16 or later to resolve the issue.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-3374

Affected Products

Rstudio Shiny Server

References · 4

• 🔥 https://github.com/colemanjp/shinyserver-directory-traversal-source-code-leak · Exploit
• https://osv.dev/vulnerability/CVE-2021-3374 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3374 · Security Note
• https://blog.rstudio.com/2021/01/13/shiny-server-1-5-16-update · Vendor Advisory