Vulnerability CVE-2021-3374
Published: 2021-04-02

Description:
Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Rstudio -> Shiny server 

 References:
https://blog.rstudio.com/2021/01/13/shiny-server-1-5-16-update/
https://github.com/colemanjp/shinyserver-directory-traversal-source-code-leak
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