Security hole in INN
Summary
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SuSE Security Announcement
Package: INN 2.0 and higher
Date: Wed May 19 15:20:33 CEST 1999
Affected: Unix operating systems using INN >= 2.0
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Some security holes were discovered in the package mentioned above.
Please update as soon as possible or disable the service if you are using
this software on your SuSE Linux installation(s).
Other Linux distributions or operating systems might be affected as
well, please contact your vendor for information about this issue.
Please note, that that we provide this information on as "as-is" basis only.
There is no warranty whatsoever and no liability for any direct, indirect or
incidental damage arising from this information or the installation of
the update package.
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1. Problem Description
The innd wrapper inndstart could be tricked to execute arbitrary
code by editing the environment (INNCONF), by modifing the inn.conf
file or by overflowing a buffer.
2. Impact
As long as /usr/lib/news/bin/inndstart is SUID root a attacker
could gain local root access to your system.
3. Solution
Remove the SUID bit of inndstart by executing
/bin/chmod 700 /usr/lib/news/bin/inndstart
Disallow other users than news to access /usr/lib/news
/bin/chmod go-rwx /usr/lib/news
Install a patch (update the package) as soon as the bug is fixed!
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______________________________________________________________________________
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______________________________________________________________________________
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Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team
References