full-disclosure - [kbelanger@...icon.ca: [VulnWatch] vuln in login under solaris]

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From: len at netsys.com (Len Rose)
Subject: [kbelanger@...icon.ca: [VulnWatch] vuln in login under solaris]

This is bullshit. I tested this using Solaris 8 just now.

I tested it with both Solaris 8 sparc and Solaris 8 intel.

How can you let this pass, you're a moderated list. 



----- Forwarded message from Keven Belanger <kbelanger@...icon.ca> -----

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Thread-Topic: vuln in login under solaris
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Sensitivity: Company-Confidential
From: "Keven Belanger" <kbelanger@...icon.ca>
To: <vulnwatch@...nwatch.org>
Subject: [VulnWatch] vuln in login under solaris

Name                           : Keven Belanger
 E-mail                         : kbelanger@...icon.ca
 Phone / fax                  : (819) 825-8049 x7717
 Affiliation and address: Logicon inc.
                                     100, des Distributeurs
                                     Val-d'Or (Quebec)
                                     Canada J9P 6Y1
 
Have you reported this to the vendor?  yes
 
        If so, please let us know whom you've contacted:
 
            Date of your report         : September 05, 2002
            Vendor contact e-mail    : security-alert@....com
            
CERT have been advised too...
 
Please describe the vulnerability.
---------------------------------
Unlike other unix based OS, when Solaris authenticate the user it let
the user
came in even if the password is not really "correct" Let me explain:
My username is sysadmin
My password is qwerty
If I log on with sysadmin/qwerty it work
If I log on with sysadmin/qwert123 it work too!
We can add any caracter after the currect password and it work!!
 
What is the impact of this vulnerability?
----------------------------------------
 (For example: local user can gain root/privileged access, intruders 
  can create root-owned files, denial of service attack,  etc.)
 
   a) What is the specific impact:
      User can gain root access
 
   b) How would you envision it being used in an attack scenario:
      User can gain root access via brute force password attack
      If the attacker try 8 caracter brute force attack it will for
      for password that have less that 8 caracter too, so it can gain
      root access faster.
      He don't have to try password with 1, 2, 3, 4... caracteres,
      try something beetween 8 and 10 et voila...
 
 
            System            : SUN Solaris
            OS version        : 8 for Sparc and intel, not tested with other version
            Verified/Guessed: Verified
 
 
For more infoamtion/explanation call me or write a email
 
K?ven Belanger
Analyste en solutions de s?curit?
Logicon Inc. - Division S?curit?
819.825.8049 x7717
800.567.6399 x7717
 

----- End forwarded message -----