VMware vSphere Web Client up to 5.5/6.0 POST Request cross-site request forgery

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in VMware vSphere Web Client up to 5.5/6.0. It has been declared as critical. This impacts an unknown function. The manipulation as part of POST Request results in cross-site request forgery. This vulnerability was named CVE-2017-4928. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in VMware vSphere Web Client up to 5.5/6.0 (Virtualization Software). Affected is some unknown processing. The manipulation as part of a POST Request leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The flash-based vSphere Web Client (6.0 prior to 6.0 U3c and 5.5 prior to 5.5 U3f) i.e. not the new HTML5-based vSphere Client, contains SSRF and CRLF injection issues due to improper neutralization of URLs. An attacker may exploit these issues by sending a POST request with modified headers towards internal services leading to information disclosure.

The bug was discovered 11/09/2017. The weakness was presented 11/17/2017 with Tencent (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2017-4928 since 12/26/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

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 216132 (VMware vCenter Server 6.0 Update U3c Missing (VMSA-2017-0017)).

Upgrading to version 5.5 U3f or 6.0 U3c 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 databases at Tenable (104654) and SecurityFocus (BID 101785†). See VDB-109667 for similar entry. Once again VulDB remains the best source 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: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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: vSphere Web Client 5.5 U3f/6.0 U3c

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: securityfocus.com⛔
Researcher: ricterzheng @ Tencent Yunding Lab
Organization: Tencent
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4928 (🔍)
GCVE (CVE): GCVE-0-2017-4928
GCVE (VulDB): GCVE-100-109668
SecurityFocus: 101785 - VMware vCenter Server CRLF Injection and Server Side Request Forgery Security Bypass Vulnerabilities
SecurityTracker: 1039759

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

Entryinfo

Created: 11/18/2017 09:00
Updated: 01/24/2021 11:56
Changes: 11/18/2017 09:00 (71), 12/08/2019 14:04 (6), 01/24/2021 11:53 (3), 01/24/2021 11:56 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!