Article View: comp.security.misc
Article #45Forging E-mail from root to get users to change passwords
From: Douglas Floyd
Date: Tue, 03 Nov 1992 15:57
Date: Tue, 03 Nov 1992 15:57
23 lines
1402 bytes
1402 bytes
How common is this attack?
1: User on foo.bar.com gets mail from root@foo.bar.com or admin@foo.bar.com
asking to change his password to "gromitvomit" because root needs to
[access the account|modify something|find a hacker|(etc.)]
2: User changes password to "gromitvomit"
3: Hacker who forged the E-mail logs in, changes the password and now
has the account.
Knowledgable users would be *VERY* suspicious because (to by knowledge)
root **N-E-V-E-R** needs to know a user's password to effect changes
to an account or the system, but this attack could work on novice UNIX
users.
What is the best way to prevent/slow down this form of attack?
--
******* ifbb657@ccwf.cc.utexas.edu (Douglas R. Floyd) ******
Disclaimer: I speak for myself.
Win NT: Another reason to pour salt water on the toroid
coil of your 21" monitor.
Technical Details
Message-ID:
<82930@ut-emx.uucp>Path:
arc1-ca.pugleaf.net!sparky!uunet!pmafire!news.dell.com!natinst.com!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu!ifbb657Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!pmafire!news.dell.com!natinst.com!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu!ifbb657 From: ifbb657@ccwf.cc.utexas.edu (Douglas Floyd) Newsgroups: comp.security.misc Subject: Forging E-mail from root to get users to change passwords Message-ID: <82930@ut-emx.uucp> Date: 3 Nov 92 15:57:47 GMT Sender: news@ut-emx.uucp Reply-To: ifbb657@ccwf.cc.utexas.edu (Douglas Floyd) Organization: The University of Texas at Austin, Austin TX Lines: 23 Originator: ifbb657@donald.cc.utexas.edu