ESA-06: SOAP Web Services Privilege Escalation Vulnerability

[secu...@eucalyptus.com]

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ESA-06: SOAP Web Services Privilege Escalation Vulnerability

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Eucalyptus Security Advisory

Advisory ID: ESA-06
Date: 8-28-2012
Severity: Critical
Affected Versions: Eucalyptus 3.0.2, 3.1.0 and earlier
CVE Number: CVE-2012-4064
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OVERVIEW
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A security vulnerability has been identified in the implementation of
the SOAP interface exposed by front-end components in Eucalyptus 3.1.0
and earlier. An update is now available that resolves this issue. We
advise immediately updating all affected Eucalyptus installations
following the instructions below.

DESCRIPTION
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Eucalyptus front-end components (Cloud Controller and Walrus) can be
accessed using the SOAP web services messaging protocol. A flaw was
found in an implementation that binds external SOAP messages to
internal representation, that allowed a user with valid Eucalyptus
credentials to submit messages in the internal format via external
services. An external user could use this flaw to escalate privileges
by injecting an effective user id, respected on some code paths, into
internal messages. As a result, a malicious user with valid Eucalyptus
credentials could perform certain operations with privileges of
Eucalyptus admin user and, in some cases, gain root privileges on the
Eucalyptus host.

SOLUTION
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This issue is resolved in Eucalyptus version 3.1.1.
Please see http://www.eucalyptus.com/download/eucalyptus
for instructions on downloading and upgrading to the latest
Eucalyptus software.

CONTACT and HELP
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Contact the Eucalyptus Security Team at secu...@eucalyptus.com.
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