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- Xref: sparky comp.os.vms:17847 vmsnet.sysmgt:336
- Path: sparky!uunet!portal!cup.portal.com!Chris_F_Chiesa
- From: Chris_F_Chiesa@cup.portal.com
- Newsgroups: comp.os.vms,vmsnet.sysmgt
- Subject: Re: HELP: how to stop and prevent break in?
- Message-ID: <69356@cup.portal.com>
- Date: Thu, 12 Nov 92 06:33:28 PST
- Organization: The Portal System (TM)
- References: <1ds5eqINN185@merak.usc.edu>
- Lines: 40
-
- Someone who doesn't use a .signature (Portal doesn't pull in headers here,
- either) writes:
-
- >We got very strange things happened on one account where we found the owner of
-
- >files are not only the owner of the account but also another one.
- >
- > OWNER=[my,WHO]
- >
- >All the files and directories under that account have two owners [...]
-
- Forgive me if the following insults your intelligence, but the other respon-
- dent I see to date, seems to have missed the point entirely.
-
- When you say "the files... have two owners," are you saying that when you
- see
-
- OWNER=[my,WHO]
-
- you believe that the file is owned by two people, named "my" and "WHO"?
- If so, I believe you are mistaken. Files under VMS have only ONE owner,
- and I've never heard of ANY contortion anyone can go through to change that.
-
- I believe you are merely seeing the file's ownership information expressed
- as a Group and Member -- [GROUP,MEMBER] -- rather than as an Identifier --
- [IDENT] . And I further believe that this is caused by the absence of an
- Identifier for the file's owner, in the system UAF.
-
- You need to determine which user is "user 'WHO' in group 'my'," and if he
- is legitimate and entitled to ownership of the files, simply add the proper
- identifier for him -- often, this has the same appearance as his username --
- to the UAF using AUTHORIZE ADD/IDENT /USER=username .
-
- You should also try to determine how the person's identifier either failed
- to get created when his account was added to the system, OR was subsequently
- deleted from the UAF. You could still have a breakin I suppose, but this
- seems like an odd form of attack if so.
-
- Chris Chiesa
- Chris_F_Chiesa@cup.portal.com
-