VMware ESXi 4.1 Update Installer /etc/sfcb/sfcb.cfg improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in VMware ESXi 4.1. Impacted is an unknown function of the file /etc/sfcb/sfcb.cfg of the component Update Installer. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2010-4573. There is not any exploit available. It is advisable to modify the configuration settings.

Detailsinfo

A vulnerability was found in VMware ESXi 4.1 (Virtualization Software) and classified as very critical. This issue affects some unknown functionality of the file /etc/sfcb/sfcb.cfg of the component Update Installer. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Update Installer in VMware ESXi 4.1, when a modified sfcb.cfg is present, does not properly configure the SFCB authentication mode, which allows remote attackers to obtain access via an arbitrary username and password.

The weakness was released 12/22/2010 with Vmware as VMSA-2010-0020 (Website). The advisory is shared at vupen.com. The identification of this vulnerability is CVE-2010-4573 since 12/21/2010. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/10/2019).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 52014 (VMSA-2010-0012 : VMware vCenter Update Manager Fix for Jetty Web Server), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216009 (VMWare ESXi 4.1.0 Patch ESXi410-Update01 Missing (KB1029354)).

It is possible to mitigate the problem by applying the configuration setting basicAuthLib: sfcBasicPAMAuthentication. A possible mitigation has been published 4 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (64265), Tenable (52014), SecurityFocus (BID 45543†), Secunia (SA42591†) and SecurityTracker (ID 1024917†). Entry connected to this vulnerability is available at VDB-52273. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.8
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 52014
Nessus Name: VMSA-2010-0012 : VMware vCenter Update Manager Fix for Jetty Web Server
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Config
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Config: basicAuthLib: sfcBasicPAMAuthentication

Timelineinfo

12/21/2010 🔍
12/21/2010 +0 days 🔍
12/21/2010 +0 days 🔍
12/22/2010 +1 days 🔍
12/22/2010 +0 days 🔍
12/22/2010 +0 days 🔍
12/22/2010 +0 days 🔍
02/17/2011 +57 days 🔍
02/21/2011 +4 days 🔍
07/29/2014 +1254 days 🔍
03/19/2015 +233 days 🔍
02/10/2019 +1424 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2010-0020⛔
Organization: Vmware
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-4573 (🔍)
GCVE (CVE): GCVE-0-2010-4573
GCVE (VulDB): GCVE-100-55841
X-Force: 64265
SecurityFocus: 45543 - VMware ESXi Update Installer Unauthorized Access Vulnerability
Secunia: 42591 - VMware ESXi Update Installer SFCB Authentication Security Bypass, Moderately Critical
SecurityTracker: 1024917
Vulnerability Center: 29869 - VMware ESXi Update Installer 4.1 Remote Security Bypass Vulnerability, High
Vupen: ADV-2010-3303

scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔍

Entryinfo

Created: 03/19/2015 23:27
Updated: 02/10/2019 11:47
Changes: 03/19/2015 23:27 (85), 02/10/2019 11:47 (2)
Complete: 🔍
Cache ID: 216:045:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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