CVE-2022-28743

Time-of-check Time-of-use (TOCTOU) Race Condition vulerability in Foscam R2C IP camera running System FW <= 1.13.1.6, and Application FW <= 2.91.2.66, allows…

Critical · published April 21, 2022

CVSS v3.1
9.1
EPSS
1%
Percentile
66.3
In the wild
Unconfirmed
What it is

🚨 A simple firmware patch could lead to a devastating takeover! This TOCTOU race condition in Foscam R2C IP cameras lets an authenticated attacker with admin access execute arbitrary code! 🔥 Think of it like a hotel front desk that gets the room key policy wrong. If a staff member checks a room's status before the guests have left, they might hand the key over to the next guest who's sneaky enough to slide in before the previous ones fully check out! An attacker could gain full remote access to the IP camera, allowing them to invade your privacy by accessing the live camera feed. They could even install malicious code or backdoors, effectively turning your own device against you! This is absolutely devastating for anyone relying on these cameras for security.

Put simply

Think of it like a hotel front desk that gets the room key policy wrong. If a staff member checks a room's status before the guests have left, they might hand the key over to the next guest who's sneaky enough to slide in before the previous ones fully check out! This vulnerability arises from a race condition where an attacker can exploit the time difference between checking permissions and using them, executing code with root permissions on the underlying Linux system of the camera. This makes it possible for them to run any code they want, leading to total control over the device.

What to do

An attacker could gain full remote access to the IP camera, allowing them to invade your privacy by accessing the live camera feed. They could even install malicious code or backdoors, effectively turning your own device against you! This is absolutely devastating for anyone relying on these cameras for security. Immediately patch your Foscam R2C cameras to the latest firmware version 1.13.1.7 for System FW and 2.91.2.67 for Application FW. If you're managing multiple devices, ensure all have been updated and monitor for any suspicious behavior. 🛡️ You've got this! Follow these steps, and you'll secure your cameras in no time! 💪✨

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01136 · 66.3th percentile
Published
2022-04-21T18:09Z
EPSS history
Timeline
  • 21 APR 18:09Z
    Time-of-check Time-of-use (TOCTOU) Race Condition vulerability in Foscam R2C IP camera running System FW <= 1.13.1.6, and Application FW <= 2.91.2.66, allows…
    cvelistv5