Bug 5410 - Linux only checks the first 8 characters of password entered
Summary: Linux only checks the first 8 characters of password entered
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: passwd   
(Show other bugs)
Version: 6.0
Hardware: All
OS: Linux
high
medium
Target Milestone: ---
Assignee: David Lawrence
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Keywords: Security
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 1999-09-28 04:34 UTC by joel
Modified: 2008-05-01 15:37 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 1999-09-28 14:47:52 UTC
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RHEL 7.3 requirements from Atomic Host:
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Description joel 1999-09-28 04:34:25 UTC 
Linux doesn't seem to check the full password string entered
against that password database, or only stores the first 8
letters.  If my password was joelwener1010, entering
joelwene, at a telnet, or e-mail password prompt would be
accepted, and I would be logged into the system.  This can
be a security problem especially if the password is meant to
be long in the first place.

Joel Wener
Comment 1 Bill Nottingham 1999-09-28 14:47:59 UTC 
Standard unix behavior for crypt() password.

Turning on shadow & md5 passwords will solve this.
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