Document ID: KM02993505 (c04926482)
Release Date: 2015-12-21
Last Updated: 2015-12-21
Potential Security Impact: Remote Access Restriction Bypass, Increase in Privilege
Source: Hewlett Packard Enterprise, HPE Product Security Response Team
A potential security vulnerability has been identified with HPE Helion Eucalyptus. The vulnerability could be exploited to bypass access permissions by a remote authenticated user.
In Eucalyptus, following the AWS model, IAM roles are used to temporarily allow users or services to access resources within or across accounts. Access to roles is determined by the roleâs trust policy and a set of user permissions. The trust policy is associated with a role and defines which accounts or services are allowed to assume the role. User permissions are defined by the policy associated with the user, and define a set of actions and resources that the user is allowed to access.
An issue has been identified in how Eucalyptus checks user permissions when allowing a user to assume a role. Given that the grant policy allows the userâs account to assume the role, any user in that account would be able to assume the role, even if the userâs policy does not explicitly grant the AssumeRole permission for the role. As a result, in some cases authenticated users could gain privileges by assuming an IAM role that they were not intended to have access to. The impact is mitigated by the fact that the roleâs trust policy still has to explicitly authorize the userâs account to access the role.
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HPE Helion Eucalyptus 3.4.0 to 4.2.0
HPE has made the following software updates available to resolve the vulnerability.
HPE Helion Eucalyptus 4.2.1
Instructions for downloading and upgrading to the latest HPE Helion Eucalyptus software are available at the following location:
Version:1 (rev.1) - 21 December 2015 Initial release
Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy.
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Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB.
3C = 3COM
3P = 3rd Party Software
GN = HP General Software
HF = HP Hardware and Firmware
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PV = ProCurve
ST = Storage Software
UX = HP-UX
System management and security procedures must be reviewed frequently to maintain system integrity. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions.
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