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Article #126Re: improved (?) security by requiring full path for commands issued by root?
From: Casper H.S. Dik - Network Securi...
Date: Thu, 08 Feb 2001 08:54
Date: Thu, 08 Feb 2001 08:54
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[[ PLEASE DON'T SEND ME EMAIL COPIES OF POSTINGS ]] bob <bob@none.for.me.com> writes: >2) The root user should issue ALL commands with the full path, eg. >'/bin/ls' instead of 'ls' That's only a valid policy when executing from under a user's environmetn (something policy should actually prohibit because users have so many ways to trick you). And it doesn't help: alias /bin/su my-tricky-su works fine in /bin/csh and derivatives. Perhaps you should require full pathname and a preceding backslash? Casper -- Expressed in this posting are my opinions. They are in no way related to opinions held by my employer, Sun Microsystems. Statements on Sun products included here are not gospel and may be fiction rather than truth.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10952f,2a5221006d4e0ad9 X-Google-Attributes: gid10952f,public X-Google-Thread: 1133d0,2a5221006d4e0ad9 X-Google-Attributes: gid1133d0,public X-Google-Thread: 10e732,2a5221006d4e0ad9 X-Google-Attributes: gid10e732,public X-Google-ArrivalTime: 2001-02-08 01:04:56 PST Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!supernews.com!news.gv.tsc.tdk.com!falcon.america.net!sunqbc.risq.qc.ca!newsfeeds.belnet.be!news.belnet.be!btnet-peer1!btnet-feed5!btnet!carbon.eu.sun.com!new-usenet.uk.sun.com!not-for-mail From: Casper.Dik@Holland.Sun.Com (Casper H.S. Dik - Network Security Engineer) Newsgroups: comp.security.unix,alt.os.security,cern.security.unix Subject: Re: improved (?) security by requiring full path for commands issued by root? Date: 8 Feb 2001 08:54:24 GMT Organization: Sun Microsystems, Netherlands Lines: 26 Message-ID: <95tms0$9a0$1@new-usenet.uk.sun.com> References: <3A822606.E06E411E@none.for.me.com> NNTP-Posting-Host: room101.holland.sun.com X-Trace: new-usenet.uk.sun.com 981622464 9536 129.159.201.52 (8 Feb 2001 08:54:24 GMT) X-Complaints-To: usenet@new-usenet.uk.sun.com NNTP-Posting-Date: 8 Feb 2001 08:54:24 GMT Mail-Copies-To: never