Add missing -r flag for xxe excel file rebuilding with zip command

-r flag is needed to include sub directories in the final archive
This commit is contained in:
Mohsen Barzegar 2025-02-16 12:56:20 +03:30
parent 7e64eda3bf
commit ad13a3c9e0

View File

@ -596,7 +596,7 @@ Rebuild Excel file:
```
$ cd XXE
$ zip -u ../xxe.xlsx *
$ zip -r -u ../xxe.xlsx *
```
Warning: Use `zip -u` (https://infozip.sourceforge.net/Zip.html) and not `7z u` / `7za u` (https://p7zip.sourceforge.net/) or `7zz` (https://www.7-zip.org/) because they won't recompress it the same way and many Excel parsing libraries will fail to recognize it as a valid Excel file. A valid magic byte signature with (`file XXE.xlsx`) will be shown as `Microsoft Excel 2007+` (with `zip -u`) and an invalid one will be shown as `Microsoft OOXML`.