CVE-2013-4577
First published: Sun Jul 03 2011(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GRUB for EFI (ARM64) | ||
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2013-4577?
CVE-2013-4577 is classified as a low severity vulnerability due to its nature of allowing local users to read sensitive information.
How does CVE-2013-4577 affect GNU GRUB?
CVE-2013-4577 affects GNU GRUB by allowing local users to obtain password hashes from the world-readable grub.cfg file.
How do I fix CVE-2013-4577?
To fix CVE-2013-4577, change the permissions of the grub.cfg file to restrict access to only authorized users.
Who is impacted by CVE-2013-4577?
Local users of systems using affected versions of GNU GRUB with improperly set permissions are impacted by CVE-2013-4577.
What kind of information can be exposed due to CVE-2013-4577?
CVE-2013-4577 can expose sensitive password hashes stored in the grub.cfg file.
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- vendor/gnu
- canonical/grub for efi (arm64)