CVE-2022-24725

MEDIUM5.5EPSS 0.30%

Exposure of home directory through shescape on Unix with Bash

發布日:2022/3/3修改日:2023/11/8

描述

### Impact The issue allows for exposure of the home directory on Unix systems when using Bash with the `escape` or `escapeAll` functions from the _shescape_ API with the `interpolation` option set to `true`. Other tested shells, Dash and Zsh, are not affected. ```javascript const cp = require("child_process"); const shescape = require("shescape"); const payload = "home_directory=~"; const options = { interpolation: true }; console.log(cp.execSync(`echo ${shescape.escape(payload, options)}`)); // home_directory=/home/user ``` Depending on how the output of _shescape_ is used, directory traversal may be possible in the application using _shescape_. ### Patches The issue was patched in `v1.5.1`. ### Workarounds Manually escape all instances of the tilde character (`~`) using `arg.replace(/~/g, "\\~")`. ### References See GitHub issue https://github.com/ericcornelissen/shescape/issues/169.

受影響套件(1)

npm/shescape>= 1.4.0, < 1.5.1

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

描述

受影響套件(1)

CVSS 分數

參考連結(5)