CVE-2021-47899

Summary

YetiShare File Hosting Script 5.1.0 contains a server-side request forgery vulnerability that allows attackers to read local system files through the remote file upload feature. Attackers can exploit the url parameter in the url_upload_handler endpoint to access sensitive files like /etc/passwd by using file:/// protocol.

Affected Software

Weaknesses

• CWE-434: Unrestricted Upload of File with Dangerous Type

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://www.exploit-db.com/exploits/49534

References

• https://www.exploit-db.com/exploits/49534
• https://mfscripts.com
• https://yetishare.com
• https://www.vulncheck.com/advisories/yetishare-file-hosting-script-remote-file-upload-ssrf-vulnerability

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