Bug 3812 - Win98 "update encrypted" problem
Win98 "update encrypted" problem
Status: RESOLVED INVALID
Product: Samba 3.0
Classification: Unclassified
Component: User/Group Accounts
3.0.21a
x86 Linux
: P3 normal
: none
Assigned To: Samba Bugzilla Account
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Reported: 2006-05-30 03:58 UTC by Jan Engelhardt
Modified: 2006-06-01 16:44 UTC (History)
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Description Jan Engelhardt 2006-05-30 03:58:01 UTC
The Windows 98 boxen here run with PlaintextPassword, as does the smbd. Since we will be moving to an NT-based system in the future, I set "update encrypted" to yes, and smbpasswd fills nicely over time.

However, I have run the password cracker 'john' over smbpasswd and had to see that all the passwords stored are in uppercase rather than whatever the user typed (normalcase). I know that LANMAN from Win95/98 uppercases all characters, but as smbd tries all upper/lowercase combinations for authentication against /etc/shadow, smbd should also write the correct-case password to smbpasswd.

The problem I see is that once we moved to Windows XP - and only smbpasswd without /etc/shadow is used - that everyone has an uppercase only password, which is not good.
Comment 1 Jan Engelhardt 2006-06-01 16:44:10 UTC
Sorry for the false alarm. "John" only decrypts the LANMAN part, without looking at the NTLM field.