Deno is a JavaScript, TypeScript, and WebAssembly runtime. In version 1.39.0, use of raw file descriptors in `op_node_ipc_pipe()` leads to premature close of arbitrary file descriptors, allowing standard input to be re-opened as a different resource resulting in permission prompt bypass. Node child_process IPC relies on the JS side to pass the raw IPC file descriptor to `op_node_ipc_pipe()`, which returns a `IpcJsonStreamResource` ID associated with the file descriptor. On closing the resource, the raw file descriptor is closed together. Use of raw file descriptors in `op_node_ipc_pipe()` leads to premature close of arbitrary file descriptors. This allow standard input (fd 0) to be closed and re-opened for a different resource, which allows a silent permission prompt bypass. This is exploitable by an attacker controlling the code executed inside a Deno runtime to obtain arbitrary code execution on the host machine regardless of permissions. This bug is known to be exploitable. There is a working exploit that achieves arbitrary code execution by bypassing prompts from zero permissions, additionally abusing the fact that Cache API lacks filesystem permission checks. The attack can be conducted silently as stderr can also be closed, suppressing all prompt outputs. Version 1.39.1 fixes the bug.
History

Fri, 03 Jan 2025 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Deno
Deno deno
CPEs cpe:2.3:a:deno:deno:1.39.0:*:*:*:*:*:*:*
Vendors & Products Deno
Deno deno

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-03-06T20:52:17.599Z

Updated: 2024-08-02T19:55:09.948Z

Reserved: 2024-02-28T15:14:14.216Z

Link: CVE-2024-27933

cve-icon Vulnrichment

Updated: 2024-08-02T00:41:55.828Z

cve-icon NVD

Status : Analyzed

Published: 2024-03-21T02:52:22.197

Modified: 2025-01-03T19:23:04.357

Link: CVE-2024-27933

cve-icon Redhat

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