CVE-2020-28713

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-06-08 · updated 2026-06-17
Weakness: CWE-294

Description

Incorrect access control in push notification service in Night Owl Smart Doorbell FW version 20190505 allows remote users to send push notification events via an exposed PNS server. A remote attacker can passively record push notification events which are sent over an insecure web request. The web service does not authenticate requests, and allows attackers to send an indefinite amount of motion or doorbell events to a user's mobile application by either replaying or deliberately crafting false events.

Affected products

Nightowlsp Smart Doorbell Firmware: 20190505

References

https://cloud.binary.ninja/embed/26671c64-6859-48fb-b58e-af35dc982b35
https://gist.github.com/tj-oconnor/dbfbef4d3b271d53fefbd24e1f0024f0
https://cloud.binary.ninja/embed/26671c64-6859-48fb-b58e-af35dc982b35
https://gist.github.com/tj-oconnor/dbfbef4d3b271d53fefbd24e1f0024f0

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