libxl provides Node bindings for the libxl library for reading and writing excel (XLS and XLSX) spreadsheets. libxl downloads zipped…
hackerone·CWE-311·Published 2018-06-01
libxl provides Node bindings for the libxl library for reading and writing excel (XLS and XLSX) spreadsheets. libxl downloads zipped resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested zip file with an attacker controlled zip file if the attacker is on the network or positioned in between the user and the remote server.
libxl provides Node bindings for the libxl library for reading and writing excel (XLS and XLSX) spreadsheets. libxl downloads zipped resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested zip file with an attacker controlled zip file if the attacker is on the network or positioned in between the user and the remote server.
Affected versions of `libxl` insecurely download an executable over an unencrypted HTTP connection. In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running `libxl`. ## Recommendation The module author recommends installing the bindings using a pinned and verified version of SDK instead of the automated download. More information is available in the modules [README](https://www.npmjs.com/package/libxl).
Affected versions of `libxl` insecurely download an executable over an unencrypted HTTP connection. In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running `libxl`. ## Recommendation The module author recommends installing the bindings using a pinned and verified version of SDK instead of the automated download. More information is available in the modules [README](https://www.npmjs.com/package/libxl).
libxl proporciona enlaces Node para la biblioteca libxl para leer y escribir hojas de cálculo de Excel(XLS y XLSX). libxl descarga recursos binarios por HTTP, lo que lo deja vulnerable a ataques MITM. Podría ser posible provocar la ejecución remota de código (RCE) cambiando el archivo zip solicitado por otro controlado por el atacante si éste están en la red o posicionado entre el usuario y el servidor remoto.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 2.0 | Primary | NVD | 9.3 | 8.6 | 10.0 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
| 3.0 | Primary | NVD | 8.1 | 2.2 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |