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Advisories

Screen SFT DAB 1.9.3 Authentication Bypass via Admin Password Change

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severity
high
date
Affecting

  • Firmware: 1.9.3

  • Bios firmware: 7.1 (Apr 19 2021)

  • Gui: 2.46

  • FPGA: 169.55

  • uc: 6.15

CWE
  • CWE-862 Missing Authorization
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
LiquidWorm as Gjoko Krstic of Zero Science Lab
Description
Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin password without providing the current credentials. Attackers can exploit the userManager.cgx endpoint by sending a crafted JSON request with a new MD5-hashed password to directly modify the admin account.