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Advisories

MikroTik RouterOS < 7.24 Out-of-Bounds Read via SMB1 SessionSetupAndX

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severity
medium
date
Affecting

  • RouterOS <= 6.49.18

  • RouterOS >= 7.0.0, <= 7.11.2

CWE
  • CWE-125 Out-of-bounds Read
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
References
Credit
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Description
MikroTik RouterOS before 7.24 contains an out-of-bounds read vulnerability in the userspace SMB daemon that allows unauthenticated attackers to read beyond the end of the request buffer by supplying a crafted uniPwdLen field value in a minimal SMB1 SessionSetupAndX frame. The out-of-bounds read occurs in the SessionSetupAndX handler before any credential validation, potentially exposing sensitive memory contents.

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