A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server). A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the intended anti-brute-force protection, potentially allowing attackers to conduct dictionary attacks more efficiently against user credentials or other authentication mechanisms.
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Fri, 01 Aug 2025 14:15:00 +0000
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ssvc
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Fri, 01 Aug 2025 01:30:00 +0000
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Thu, 31 Jul 2025 21:00:00 +0000
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Description | A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server). A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the intended anti-brute-force protection, potentially allowing attackers to conduct dictionary attacks more efficiently against user credentials or other authentication mechanisms. | |
Title | Kernel: ksmbd brute force delay bypass via asynchronous requests | |
First Time appeared |
Redhat
Redhat enterprise Linux |
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Weaknesses | CWE-307 | |
CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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Vendors & Products |
Redhat
Redhat enterprise Linux |
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References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2025-07-31T20:44:02.968Z
Updated: 2025-08-01T13:29:57.568Z
Reserved: 2023-05-05T10:00:07.895Z
Link: CVE-2023-32251

Updated: 2025-08-01T13:29:47.528Z

Status : Awaiting Analysis
Published: 2025-07-31T21:15:26.810
Modified: 2025-08-04T15:06:36.623
Link: CVE-2023-32251

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