Description
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, getEscapeFunction in src/internal/win/cmd.js does not escape `(` and `)` when applications use the escape or escapeAll APIs on Windows with shell set to cmd.exe, or with shell set to true when CMD is the default. An attacker-controlled argument can break out of a parenthesized CMD construct and inject shell syntax depending on the original command, resulting in arbitrary command execution. This issue is fixed in versions 2.1.14 and 3.0.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ericcornelissen | shescape | < 2.1.14, >= 3.0.0, < 3.0.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | shescape | < 2.1.14 | 2.1.14 | GHSA-w4hw-qcx7-56pr |
| npm | shescape | >= 3.0.0, < 3.0.1 | 3.0.1 | GHSA-w4hw-qcx7-56pr |
References
- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-w4hw-qcx7-56pr
- https://github.com/ericcornelissen/shescape/pull/2649
- https://github.com/ericcornelissen/shescape/pull/2651
- https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de
- https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f
- https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14
- https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1