CVE-2013-4577 json
A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as de…
published 2014-05-12 12 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4435
- cvss
- 2.1
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- grub2 Debian 14, Debian 13, Debian 12 2.00-20
debian advisories DEBIAN-CVE-2013-4577
- grub2 Ubuntu 14.04 LTS 2.00-20
ubuntu advisories UBUNTU-CVE-2013-4577
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-264 Permissions, Privileges, and Access Controls
References
-
seclists.org
/oss-sec/2013/q4/291
mailing-list, patch
-
seclists.org
/oss-sec/2013/q4/292
mailing-list, patch
- bugs.debian.org /cgi-bin/bugreport.cgi?bug=632598
- openwall.com /lists/oss-security/2024/01/15/3
Sources
- CVE List CVE-2013-4577
- NVD CVE-2013-4577
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.