Vulnerability Monitor

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CVE-2009-4128

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.

Published

2009-12-01T16:30:01.467

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	grub_2	1.97	Yes

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195 Exploit ([email protected])
http://www.openwall.com/lists/oss-security/2024/01/15/3 ([email protected])
http://www.securityfocus.com/bid/36968 Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/54210 ([email protected])
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/01/15/3 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/36968 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/54210 (af854a3a-2127-422b-91ae-364da2661108)