Veracode Vulnerability DatabaseVERACODE:10694Authorization Bypass
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
libvirt is vulnerable to authorization bypass attacks. The vulnerability exists as the networkReloadIptablesRules function of network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.
References
libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef909426e2ebafa6bca9157
libvirt.org/news-2012.html
www.ubuntu.com/usn/USN-2867-1
access.redhat.com/kb/docs/DOC-67874
access.redhat.com/security/cve/CVE-2011-4600
bugzilla.redhat.com/show_bug.cgi?id=759061
bugzilla.redhat.com/show_bug.cgi?id=760442
bugzilla.redhat.com/show_bug.cgi?id=769674
bugzilla.redhat.com/show_bug.cgi?id=770957
bugzilla.redhat.com/show_bug.cgi?id=770959
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Technical_Notes/libvirt.html#RHBA-2012-0013
rhn.redhat.com/errata/RHBA-2012-0013.html
rhn.redhat.com/errata/RHSA-2011-1849.html
www.redhat.com/security/data/cve/CVE-2011-4127.html
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N