Vulnerability CVE-2009-4128


Published: 2009-12-01   Modified: 2012-02-13

Description:
GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.

Type:

CWE-287

(Improper Authentication)

Vendor: GNU
Product: Grub 2 
Version: 1.97;

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
http://www.securityfocus.com/bid/36968
http://xforce.iss.net/xforce/xfdb/54210
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195

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