VDB-109667 · CVE-2017-4927 · BID 101786

VMware vCenter Server up to 6.0/6.5 LDAP Network Packet ldap injection

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in VMware vCenter Server up to 6.0/6.5 (Server Management Software). This issue affects an unknown code block. The manipulation as part of a LDAP Network Packet leads to a ldap injection vulnerability. Using CWE to declare the problem leads to CWE-90. The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component. Impacted is availability. The summary by CVE is:

VMware vCenter Server (6.5 prior to 6.5 U1 and 6.0 prior to 6.0 U3c) does not correctly handle specially crafted LDAP network packets which may allow for remote denial of service.

The bug was discovered 11/09/2017. The weakness was disclosed 11/17/2017 with Fortinet's FortiGuard Labs (Website). It is possible to read the advisory at vmware.com. The identification of this vulnerability is CVE-2017-4927 since 12/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 104654 (VMware vCenter Server 5.5.x < 5.5u3f / 6.0.x < 6.0u3c / 6.5.x < 6.5u1 Multiple Vulnerabilities (VMSA-2017-0017)), 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 r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216128 (VMware vCenter Server 6.5 Update 1 Missing (VMSA-2017-0015, VMSA-2017-0017)).

Upgrading to version 6.0 U3c or 6.5 U1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104654). The entries 106742 and 109668 are pretty similar.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Ldap injection
CWE: CWE-90 / CWE-74 / CWE-707
ATT&CK: T1505

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104654
Nessus Name: VMware vCenter Server 5.5.x < 5.5u3f / 6.0.x < 6.0u3c / 6.5.x < 6.5u1 Multiple Vulnerabilities (VMSA-2017-0017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: vCenter Server 6.0 U3c/6.5 U1

Timelineinfo

12/26/2016 🔍
11/09/2017 +318 days 🔍
11/09/2017 +0 days 🔍
11/09/2017 +0 days 🔍
11/17/2017 +8 days 🔍
11/17/2017 +0 days 🔍
11/17/2017 +0 days 🔍
11/18/2017 +1 days 🔍
01/24/2021 +1163 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: vmware.com
Researcher: Honggang Ren
Organization: Fortinet's FortiGuard Labs
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4927 (🔍)
SecurityTracker: 1039759
SecurityFocus: 101786 - VMware vCenter Server CVE-2017-4927 Denial of Service Vulnerability

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

Entryinfo

Created: 11/18/2017 09:00
Updated: 01/24/2021 11:46
Changes: 11/18/2017 09:00 (70), 12/08/2019 13:59 (6), 01/24/2021 11:41 (3), 01/24/2021 11:46 (1)
Complete: 🔍

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