HP Integrated Lights-Out 2/3/4 IPMI Protocol credentials management

CVSS Meta Temp Score
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8.0$0-$5k0.05

A vulnerability was found in HP Integrated Lights-Out 2/3/4 (Network Management Software) and classified as critical. Affected by this issue is an unknown functionality of the component IPMI Protocol Handler. The manipulation with an unknown input leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The IPMI 2.0 specification supports RMCP+ Authenticated Key-Exchange Protocol (RAKP) authentication, which allows remote attackers to obtain password hashes and conduct offline password guessing attacks by obtaining the HMAC from a RAKP message 2 response from a BMC.

The weakness was released 03/13/2014 by Dan Farmer as SSRT101367 / c04197764 as confirmed advisory (Website). The advisory is shared for download at h20565.www2.hp.com. This vulnerability is handled as CVE-2013-4786 since 07/08/2013. The attack may be launched remotely. The successful exploitation needs a simple authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1552. The advisory points out:

There is no resolution to this issue. The authentication process for the IPMI 2.0 specification mandates that the server send a salted SHA1 or MD5 hash of the requested user's password to the client, prior to the client authenticating. The BMC returns the password hash for any valid user account requested. This password hash can be broken using an offline brute force or dictionary attack. Because this functionality is a key part of the IPMI 2.0 specification, there is no way to fix the problem without deviating from the IPMI 2.0 specification.

A public exploit has been developed in Perl. The exploit is available at securityfocus.com. It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 80101 (IPMI v2.0 Password Hash Disclosure), which helps to determine the existence of the flaw in a target environment. It is assigned to the family General. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43393 (IPMI 2.0 RAKP Authentication Remote Password Hash Retrieval Vulnerability).

It is possible to mitigate the problem by applying the configuration setting Disable IPMI. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (85567) and Tenable (80101). Entries connected to this vulnerability are available at 64655, 78153, 82623 and 82615.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

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Nessus ID: 80101
Nessus Name: IPMI v2.0 Password Hash Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: ipmi_dumphashes.rb
MetaSploit Name: IPMI 2.0 RAKP Remote SHA1 Password Hash Retrieval
MetaSploit File: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Config
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Config: Disable IPMI

Timelineinfo

07/02/2013 🔍
07/02/2013 +0 days 🔍
07/08/2013 +6 days 🔍
07/08/2013 +0 days 🔍
07/22/2013 +14 days 🔍
03/13/2014 +234 days 🔍
03/13/2014 +0 days 🔍
04/01/2014 +19 days 🔍
04/02/2014 +1 days 🔍
12/18/2014 +260 days 🔍
06/16/2021 +2372 days 🔍

Sourcesinfo

Vendor: hp.com

Advisory: SSRT101367 / c04197764
Researcher: Dan Farmer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-4786 (🔍)
X-Force: 85567
SecurityTracker: 1029981 - HP integrated Lights Out (iLO) IPMI Protocol Flaw Lets Remote Users Obtain Hashed Passwords
Vulnerability Center: 40635 - Intelligent Platform Management Interface (IPMI) 2.0 Remote Information Disclosure Vulnerability via RAKP Authentication and BMC, High
SecurityFocus: 61076 - Intelligent Platform Management Interface CVE-2013-4786 Information Disclosure Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/02/2014 14:59
Updated: 06/16/2021 14:37
Changes: 04/02/2014 14:59 (86), 05/06/2017 19:24 (10), 06/16/2021 14:37 (3)
Complete: 🔍

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