Date: Tue, 12 Jul 2011 14:01:01 -0400 (EDT) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: coley <coley@...re.org> Subject: Re: Apache symlink issue: can documented behavior be a security problem and hence get a CVE? I'm going to leave this one for MITRE. Thanks. -- JB ----- Original Message ----- > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hello List, > > Is it possible to assign a CVE for documented behavior? Communication > with apache security showed, that following symlinks to arbitrary > locations is a documented feature, even when "-FollowSymLink" option > is > in place. This allows any user with, that can modify some content > served > by apache to access any content accessible by the apache process, also > content not visible to the user (e.g. outside the ftp-upload directory > or forbidden like /proc/http-pid/maps). Due to the small window of > opportunity, this might be relevant mostly when user can already > execute > code on the machine, so it is not a big issue. /proc/<pid>/mem is > protected, when apache is running with setuid, so key material cannot > be > extracted using range headers. PUT was not tested so far. > > See also > > http://www.halfdog.net/Security/2011/ApacheNoFollowSymlinkTimerace/ > > - -- > http://www.halfdog.net/ > PGP: 156A AE98 B91F 0114 FE88 2BD8 C459 9386 feed a bee > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > > iD8DBQFOHC4exFmThv7tq+4RAooyAJ9Vh7F49em+AVT1HosEquCPS+olqQCfdVCO > PDcCdoHHWTCHe53U+XTzefY= > =fVzn > -----END PGP SIGNATURE-----
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