CVE-2009-3525

The 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.

• CWE-264

• http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
• http://secunia.com/advisories/36908Vendor Advisory
• http://www.openwall.com/lists/oss-security/2009/09/25/1Patch
• http://www.redhat.com/support/errata/RHSA-2009-1472.htmlVendor Advisory
• http://www.securityfocus.com/bid/36523Exploit
• http://www.securitytracker.com/id?1022950
• http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3Exploit
• https://bugzilla.redhat.com/show_bug.cgi?id=525740Exploit, Patch
• https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0Exploit, Patch
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466
• http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
• http://secunia.com/advisories/36908Vendor Advisory
• http://www.openwall.com/lists/oss-security/2009/09/25/1Patch
• http://www.redhat.com/support/errata/RHSA-2009-1472.htmlVendor Advisory
• http://www.securityfocus.com/bid/36523Exploit
• http://www.securitytracker.com/id?1022950
• http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3Exploit
• https://bugzilla.redhat.com/show_bug.cgi?id=525740Exploit, Patch
• https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0Exploit, Patch
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466

Published

Oct 5, 2009

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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