PT-2009-6303 · Gnu · Grub

Recoverym4N · Published 2009-12-01 · Updated 2024-01-16 · CVE-2009-4128

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions GNU GRand Unified Bootloader (GRUB) 2 version 1.97

Description The issue allows physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1, as the software only compares the submitted portion of a password with the actual password.

Recommendations For GNU GRand Unified Bootloader (GRUB) 2 version 1.97, consider using a different authentication mechanism or increasing the minimum password length to mitigate the risk of brute force attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2009-4128

Affected Products

Grub

References · 9

• 🔥 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195 · Exploit
• https://osv.dev/vulnerability/CVE-2009-4128 · Vendor Advisory
• http://securityfocus.com/bid/36968 · Patch
• https://security-tracker.debian.org/tracker/CVE-2009-4128 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-4128 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2009-4128 · Vendor Advisory
• http://openwall.com/lists/oss-security/2024/01/15/3 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/54210 · Note
• https://t.me/cvenotify/67486 · Telegram Post