Vulnerability Information
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Vulnerability Title
Judge0 vulnerable to Sandbox Escape via Symbolic Link
Vulnerability Description
Judge0 is an open-source online code execution system. The application does not account for symlinks placed inside the sandbox directory, which can be leveraged by an attacker to write to arbitrary files and gain code execution outside of the sandbox. When executing a submission, Judge0 writes a `run_script` to the sandbox directory. The security issue is that an attacker can create a symbolic link (symlink) at the path `run_script` before this code is executed, resulting in the `f.write` writing to an arbitrary file on the unsandboxed system. An attacker can leverage this vulnerability to overwrite scripts on the system and gain code execution outside of the sandbox.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability Type
CWE-61
Vulnerability Title
Judge0 CE 安全漏洞
Vulnerability Description
Judge0 CE是Judge0开源的一个开源在线代码执行系统。 Judge0 CE 1.13.1之前版本存在安全漏洞，该漏洞源于应用程序不考虑放置在沙箱目录内的符号链接，攻击者利用该漏洞可以使用该符号链接写入任意文件并在沙箱外执行代码。
CVSS Information
N/A
Vulnerability Type
N/A