Vulnerability CVE-2013-4577
Published: 2014-05-12

Description:
A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
grub-mkconfig local access to password
Seth
13.05.2014

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
GNU -> GRUB 

 References:
http://seclists.org/oss-sec/2013/q4/292
http://seclists.org/oss-sec/2013/q4/291
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632598
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