VMware vCenter Server 6.5 Backup credentials management

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in VMware vCenter Server 6.5. The affected element is an unknown function of the component Backup Handler. This manipulation causes credentials management. This vulnerability is registered as CVE-2017-4923. The attack needs to be launched locally. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware vCenter Server 6.5 (Server Management Software). It has been declared as problematic. Affected by this vulnerability is an unknown code of the component Backup Handler. The manipulation with an unknown input leads to a credentials management vulnerability. The CWE definition for the vulnerability is CWE-255. As an impact it is known to affect confidentiality. The summary by CVE is:

VMware vCenter Server (6.5 prior to 6.5 U1) contains an information disclosure vulnerability. This issue may allow plaintext credentials to be obtained when using the vCenter Server Appliance file-based backup feature.

The bug was discovered 07/27/2017. The weakness was published 07/27/2017 as VMSA-2017-0013 as confirmed security advisory (Website). The advisory is shared at vmware.com. This vulnerability is known as CVE-2017-4923 since 12/26/2016. An attack has to be approached locally. A single authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 102084 (VMware vCenter Server Appliance 6.5 < 6.5 U1 Multiple Vulnerabilities (VMSA-2017-0013)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216125 (VMware vCenter Server 6.5 Update 1 Missing (VMSA-2017-0013)).

Upgrading to version 6.5 U1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102084), SecurityFocus (BID 99997†) and SecurityTracker (ID 1039013†). Similar entries are available at VDB-104603, VDB-104604 and VDB-104606. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102084
Nessus Name: VMware vCenter Server Appliance 6.5 < 6.5 U1 Multiple Vulnerabilities (VMSA-2017-0013)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: vCenter Server 6.5 U1

Timelineinfo

12/26/2016 🔍
07/27/2017 +213 days 🔍
07/27/2017 +0 days 🔍
07/27/2017 +0 days 🔍
07/27/2017 +0 days 🔍
07/28/2017 +1 days 🔍
07/28/2017 +0 days 🔍
07/31/2017 +3 days 🔍
08/01/2017 +1 days 🔍
01/06/2021 +1254 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2017-0013
Researcher: Joe Womack
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-4923 (🔍)
GCVE (CVE): GCVE-0-2017-4923
GCVE (VulDB): GCVE-100-104605
SecurityFocus: 99997 - VMware vCenter Server CVE-2017-4923 Information Disclosure Vulnerability
SecurityTracker: 1039013

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

Entryinfo

Created: 07/28/2017 20:23
Updated: 01/06/2021 16:34
Changes: 07/28/2017 20:23 (77), 11/02/2019 08:31 (5), 01/06/2021 16:34 (3)
Complete: 🔍
Cache ID: 216::103

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