CVE-2009-3525

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Summary

CVECVE-2009-3525
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-10-05 19:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password.

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Xen Xen 3.0.3 All All All
Application Xen Xen 3.3.0 All All All
Application Xen Xen 3.3.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - CVE Request -- Xen -- PyGrub af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
Xen pygrub Local Authentication Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Exploit
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:012 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
xen-unstable.hg: log af854a3a-2127-422b-91ae-364da2661108 xenbits.xensource.com Exploit
Bug 525740 – CVE-2009-3525 Xen: PyGrub missing support for password configuration command af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Exploit, Patch
Security Advisory SA36908 - Red Hat update for xen - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityTracker.com Archives - Xen PyGrub Access Control Flaw Lets Local Users Modify the Boot Configuration af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Vendor Advisory
Bug 525740 – CVE-2009-3525 Xen: PyGrub missing support for password configuration command af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Exploit, Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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