Vulnerability Monitor

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CVE-2019-15801

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware, these passwords can be decrypted. This is related to fds_sys_passDebugPasswd_ret() and fds_sys_passRecoveryPasswd_ret() in libfds.so.0.0.

Published

2019-11-14T21:15:11.750

Last Modified

2024-11-21T04:29:29.637

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-798
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System zyxel gs1900-8_firmware < 2.50\(aahh.0\)c0 Yes
Hardware zyxel gs1900-8 - No
Operating System zyxel gs1900-8hp_firmware < 2.50\(aahi.0\)c0 Yes
Hardware zyxel gs1900-8hp - No
Operating System zyxel gs1900-10hp_firmware < 2.50\(aazi.0\)c0 Yes
Hardware zyxel gs1900-10hp - No
Operating System zyxel gs1900-16_firmware < 2.50\(aahj.0\)c0 Yes
Hardware zyxel gs1900-16 - No
Operating System zyxel gs1900-24e_firmware < 2.50\(aahk.0\)c0 Yes
Hardware zyxel gs1900-24e - No
Operating System zyxel gs1900-24_firmware < 2.50\(aahl.0\)c0 Yes
Hardware zyxel gs1900-24 - No
Operating System zyxel gs1900-24hp_firmware < 2.50\(aahm.0\)c0 Yes
Hardware zyxel gs1900-24hp - No
Operating System zyxel gs1900-48_firmware < 2.50\(aahn.0\)c0 Yes
Hardware zyxel gs1900-48 - No
Operating System zyxel gs1900-48hp_firmware < 2.50\(aaho.0\)c0 Yes
Hardware zyxel gs1900-48hp - No
References