CVE-2024-51745
Wasmtime doesn't fully sandbox all the Windows device filenames
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so on. Untrusted Wasm programs that are given access to any filesystem directory could bypass the sandbox and access devices through those special device filenames with superscript digits, and through them gain access peripheral devices connected to the computer, or network resources mapped to those devices. This can include modems, printers, network printers, and any other device connected to a serial or parallel port, including emulated USB serial ports. Patch releases for Wasmtime have been issued as 24.0.2, 25.0.3, and 26.0.1. Users of Wasmtime 23.0.x and prior are recommended to upgrade to one of these patched versions. There are no known workarounds for this issue. Affected Windows users are recommended to upgrade.
Wasmtime es un entorno de ejecución rápido y seguro para WebAssembly. La implementación de la zona protegida del sistema de archivos de Wasmtime en Windows bloquea el acceso a nombres de archivos de dispositivos especiales como "COM1", "COM2", "LPT0", "LPT1", etc., pero no bloquea el acceso a los nombres de archivos de dispositivos especiales que utilizan dígitos en superíndice, como "COM¹", "COM²", "LPT?", "LPT¹", etc. Los programas Wasm no confiables a los que se les da acceso a cualquier directorio del sistema de archivos podrían omitir la zona protegida y acceder a los dispositivos a través de esos nombres de archivos de dispositivos especiales con dígitos en superíndice, y a través de ellos obtener acceso a dispositivos periféricos conectados a la computadora o recursos de red asignados a esos dispositivos. Esto puede incluir módems, impresoras, impresoras de red y cualquier otro dispositivo conectado a un puerto serial o paralelo, incluidos los puertos seriales USB emulados. Se han publicado parches para Wasmtime como 24.0.2, 25.0.3 y 26.0.1. Se recomienda a los usuarios de Wasmtime 23.0.x y versiones anteriores que actualicen a una de estas versiones parcheadas. No existen workarounds conocidos para este problema. Se recomienda a los usuarios de Windows afectados que actualicen.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-10-31 CVE Reserved
- 2024-11-05 CVE Published
- 2024-11-05 CVE Updated
- 2024-11-06 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-67: Improper Handling of Windows Device Names
- CWE-184: Incomplete List of Disallowed Inputs
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://en.wikipedia.org/wiki/ISO/IEC_8859-1 | X_refsource_misc | |
| https://github.com/bytecodealliance/cap-std/pull/371 | X_refsource_misc | |
| https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-c2f5-jxjv-2hh8 | X_refsource_confirm | |
| https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions | X_refsource_misc |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Bytecodealliance Search vendor "Bytecodealliance" | Wasmtime Search vendor "Bytecodealliance" for product "Wasmtime" | < 24.0.2 Search vendor "Bytecodealliance" for product "Wasmtime" and version " < 24.0.2" | en |
Affected
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| Bytecodealliance Search vendor "Bytecodealliance" | Wasmtime Search vendor "Bytecodealliance" for product "Wasmtime" | >= 25.0.0 < 25.0.3 Search vendor "Bytecodealliance" for product "Wasmtime" and version " >= 25.0.0 < 25.0.3" | en |
Affected
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| Bytecodealliance Search vendor "Bytecodealliance" | Wasmtime Search vendor "Bytecodealliance" for product "Wasmtime" | 26.0.0 Search vendor "Bytecodealliance" for product "Wasmtime" and version "26.0.0" | en |
Affected
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