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Logrotate and “insecure permissions”: What can actually go wrong?


What is the difference between double and single square brackets in bash?Logrotate and Open FilesApache, logerror and logrotate: what is the best method?Apache, and logrotate instancesHow can I monitor what logrotate is doing?What permissions should my website files/folders have on a Linux webserver?logrotate daily and size?What actually calls logrotate in CentOS 6.3SELinux permissions for LogRotate and ApacheConflicting Logrotate Permissions






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Logrotate complained to me this morning that it would not rotate some logs because their parent directory is writeable by someone else than root. The man page states I can make the error message go away by adding the "su" directive which makes logrotate drop root privileges when rotating that specific logfile. So far, so good.



What I wonder is (and the manpage is silent about it), how could a malicious user exploit logrotate if it would not take this precaution? As long as logrotate's configuration can only be altered by root (well, the configuration for logrotate that is triggered by cron and runs as root), an attacker cannot make logrotate touch arbitrary files, and I would assume logrotate does not touch symlinks?










share|improve this question




























    0















    Logrotate complained to me this morning that it would not rotate some logs because their parent directory is writeable by someone else than root. The man page states I can make the error message go away by adding the "su" directive which makes logrotate drop root privileges when rotating that specific logfile. So far, so good.



    What I wonder is (and the manpage is silent about it), how could a malicious user exploit logrotate if it would not take this precaution? As long as logrotate's configuration can only be altered by root (well, the configuration for logrotate that is triggered by cron and runs as root), an attacker cannot make logrotate touch arbitrary files, and I would assume logrotate does not touch symlinks?










    share|improve this question
























      0












      0








      0








      Logrotate complained to me this morning that it would not rotate some logs because their parent directory is writeable by someone else than root. The man page states I can make the error message go away by adding the "su" directive which makes logrotate drop root privileges when rotating that specific logfile. So far, so good.



      What I wonder is (and the manpage is silent about it), how could a malicious user exploit logrotate if it would not take this precaution? As long as logrotate's configuration can only be altered by root (well, the configuration for logrotate that is triggered by cron and runs as root), an attacker cannot make logrotate touch arbitrary files, and I would assume logrotate does not touch symlinks?










      share|improve this question














      Logrotate complained to me this morning that it would not rotate some logs because their parent directory is writeable by someone else than root. The man page states I can make the error message go away by adding the "su" directive which makes logrotate drop root privileges when rotating that specific logfile. So far, so good.



      What I wonder is (and the manpage is silent about it), how could a malicious user exploit logrotate if it would not take this precaution? As long as logrotate's configuration can only be altered by root (well, the configuration for logrotate that is triggered by cron and runs as root), an attacker cannot make logrotate touch arbitrary files, and I would assume logrotate does not touch symlinks?







      linux logrotate






      share|improve this question













      share|improve this question











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      asked Apr 23 at 7:49









      SimonSimon

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