HPE Intelligent Provisioning grub2 code injection

Summaryinfo

A vulnerability described as critical has been identified in HPE Intelligent Provisioning, Service Pack for ProLiant and HPE Scripting ToolKit. The affected element is an unknown function of the component grub2. Executing a manipulation can lead to code injection. This vulnerability is registered as CVE-2020-7205. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in HPE Intelligent Provisioning, Service Pack for ProLiant and HPE Scripting ToolKit (unknown version). This vulnerability affects an unknown code block of the component grub2. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A potential security vulnerability has been identified in HPE Intelligent Provisioning, Service Pack for ProLiant, and HPE Scripting ToolKit. The vulnerability could be locally exploited to allow arbitrary code execution during the boot process. **Note:** This vulnerability is related to using insmod in GRUB2 in the specific impacted HPE product and HPE is addressing this issue. HPE has made the following software updates and mitigation information to resolve the vulnerability in Intelligent Provisioning, Service Pack for ProLiant, and HPE Scripting ToolKit. HPE provided latest Intelligent Provisioning, Service Pack for ProLiant, and HPE Scripting Toolkit which includes the GRUB2 patch to resolve this vulnerability. These new boot images will update GRUB2 and the Forbidden Signature Database (DBX). After the DBX is updated, users will not be able to boot to the older IP, SPP or Scripting ToolKit with Secure Boot enabled. HPE have provided a standalone DBX update tool to work with Microsoft Windows, and supported Linux Operating Systems. These tools can be used to update the Forbidden Signature Database (DBX) from within the OS. **Note:** This DBX update mitigates the GRUB2 issue with insmod enabled, and the "Boot Hole" issue for HPE signed GRUB2 applications.

The weakness was published 07/30/2020 (Website). The advisory is shared for download at support.hpe.com. This vulnerability was named CVE-2020-7205 since 01/16/2020. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/31/2020). The MITRE ATT&CK project declares the attack technique as T1059.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• HPE

Name

• HPE Scripting ToolKit
• Intelligent Provisioning
• Service Pack for ProLiant

License

• commercial

Website

• Vendor: https://www.hpe.com/

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