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Reolink E1 Zoom Camera <= 3.0.0.716 Unauthenticated Web Server Configuration Disclosure

Jun 1, 2022 · By Julien Ahrens

ADVISORY INFORMATION

  • Product: Reolink E1 Zoom Camera
  • Vendor URL: https://reolink.com/product/e1-zoom
  • Type: Exposure of Sensitive Information to an Unauthorized Actor [CWE-200]
  • Date found: 2021-08-26
  • Date published: 2022-06-01
  • CVSSv3 Score: 5.3 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
  • CVE: CVE-2021-40150

CREDITS

This vulnerability was discovered and researched by Julien Ahrens from RCE Security.

VERSIONS AFFECTED

Reolink E1 Zoom Camera 3.0.0.716 (latest) and below

INTRODUCTION

Meet new generation of Reolink E1 series. Advanced features - 5MP Super HD & optical zoom are added into this compact camera. Plus two-way audio, remote live view and more smart capacities help you connect with what you care. Be closer to families and be away from worries.

(from the vendor’s homepage)

VULNERABILITY DETAILS

The web server of the E1 Zoom camera through 3.0.0.716 discloses its configuration via the /conf/ directory that is mapped to a publicly accessible path.

An unauthenticated attacker can abuse this with network-level access to the camera to download the entire NGINX/FastCGI configurations by querying, i.e.:

http://[CAM-IP]/conf/nginx.conf http://[CAM-IP]/conf/fastcgi.conf

Etc.

RISK

An unauthenticated attacker can download the webserver’s configuration files which might lead to sensitive information disclosure.

SOLUTION

None.

REPORT TIMELINE

  • 2021-08-26: Discovery of the vulnerability
  • 2021-08-26: Sent notification to Reolink via their support channel
  • 2021-08-26: Response from vendor asking for vulnerability details
  • 2021-08-26: Sent all the vulnerability details
  • 2021-08-31: Vendor is still looking into the issue
  • 2021-09-03: Vendor states that the issue will be fixed with the next firmware update by the end of September.
  • 2021-10-01: Since no firmware has been released, we’ve sent another notification
  • 2021-10-02: Vendor states that the new firmware is delayed
  • 2022-02-01: Since there is still fix, sent another notification
  • 2022-02-02: Vendor states that the firmware with the fix hasn’t been released yet.
  • 2022-03-03: Since there is still fix, sent another notification
  • 2022-03-12: Vendor states they’re still working on the issue (internal update awaits testing)
  • 2022-05-24: Since there is still fix, sent another notification
  • 2022-05-24: Vendor states that the update still hasn’t been released yet.
  • 2022-06-01: Almost a year should be enough to fix this. Public disclosure.

REFERENCES

None