VMware vCenter Server Appliance 5.1/5.5 Ruby vSphere Console access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in VMware vCenter Server Appliance 5.1/5.5. It has been classified as problematic. Impacted is an unknown function of the component Ruby vSphere Console. The manipulation leads to access control. This vulnerability is listed as CVE-2014-3790. There is no available exploit. You should change the configuration settings.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in VMware vCenter Server Appliance 5.1/5.5 (Server Management Software). This issue affects an unknown code block of the component Ruby vSphere Console. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, and integrity. The summary by CVE is:

Ruby vSphere Console (RVC) in VMware vCenter Server Appliance allows remote authenticated users to execute arbitrary commands as root by escaping from a chroot jail.

The weakness was presented 05/30/2014 by Shanon Olsson with JPCERT as ZDI-14-159 as confirmed advisory (Website) via ZDI (Zero Day Initiative). It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2014-3790 since 05/19/2014. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 204 days. During that time the estimated underground price was around $25k-$100k.

It is possible to mitigate the problem by applying the configuration setting usermod -R shellaccess LOGIN. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Remove the line "AllowGroups shellaccess wheel" from the /etc/ssh/sshd_config Restart the sshd service with the following command: service sshd restart

The vulnerability is also documented in the databases at X-Force (93497), SecurityFocus (BID 67756†), OSVDB (107617†), Secunia (SA58823†) and SecurityTracker (ID 1030436†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.4
VulDB Temp Score: 4.8
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Config
Status: 🔍

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

Config: usermod -R shellaccess LOGIN

Timelineinfo

11/07/2013 🔍
11/07/2013 +0 days 🔍
05/19/2014 +193 days 🔍
05/30/2014 +11 days 🔍
05/30/2014 +0 days 🔍
05/30/2014 +0 days 🔍
06/01/2014 +2 days 🔍
06/01/2014 +0 days 🔍
06/16/2014 +15 days 🔍
06/17/2014 +1 days 🔍
04/03/2019 +1751 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: ZDI-14-159
Researcher: Shanon Olsson
Organization: JPCERT
Status: Confirmed

CVE: CVE-2014-3790 (🔍)
GCVE (CVE): GCVE-0-2014-3790
GCVE (VulDB): GCVE-100-13403
X-Force: 93497 - VMware vCenter Server Appliance privilege escalation, Medium Risk
SecurityFocus: 67756 - VMWare vCenter Server Appliance Ruby vSphere Console Local Privilege Escalation Vulnerability
Secunia: 58823 - VMware vCenter Server Appliance RVC Privilege Escalation Vulnerability, Less Critical
OSVDB: 107617
SecurityTracker: 1030436

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

Entryinfo

Created: 06/01/2014 17:49
Updated: 04/03/2019 16:32
Changes: 06/01/2014 17:49 (77), 04/03/2019 16:32 (1)
Complete: 🔍
Cache ID: 216:4CB:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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