| タイトル | Easy File Locker, xlkfs.sys, DoS |
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| 説明 | Version: Easy File Locker x.x.x.x, xlkfs.sys x.x.x.x, DoS
Impact: Denial of Service
Description: In MessageNotifyCallback, a normal user can send a large value by FilterConnectCommunicationPort to cause out of bound due to the lack of validating input buffer, which will lead to DoS or possibly have unspecified other impact.
Reproduce: In the attached file DoS.zip, there are DoS.exe, DoS.cpp, EFL2.2_Setup(x64).exe, and xlkfs.sys. DoS.exe is the PoC to cause BSOD where EFL2.2_Setup(x64).exe which contains the vulnerable driver xlkfs.sys is installed, and DoS.cpp is the source code of DoS.exe. To reproduce the issue, just install EFL2.2_Setup(x64).exe and execute DoS.exe. It is expected that the system will crash (BSOD) once DoS.exe is executed. Password for attachment (DoS.zip): DoS
https://drive.google.com/file/d/1eow4SP11iEza9D4_Dz7hkouOqJQynA_2/view?usp=sharing |
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| ユーザー | Zeze7w (UID 40823) |
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| 送信 | 2023年02月13日 06:21 (4 年 ago) |
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| モデレーション | 2023年02月18日 08:55 (5 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 221457 [Xoslab Easy File Locker 2.2.0.184 xlkfs.sys MessageNotifyCallback サービス拒否] |
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| ポイント | 17 |
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