VMware Workstation/Fusion Drag/Drop memory corruption

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.
8.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in VMware Workstation and Fusion. The impacted element is an unknown function of the component Drag/Drop. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2017-4901. The attack requires a local approach. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in VMware Workstation and Fusion (Virtualization Software) (version now known). This affects some unknown processing of the component Drag/Drop. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The drag-and-drop (DnD) function in VMware Workstation 12.x before version 12.5.4 and Fusion 8.x before version 8.5.5 has an out-of-bounds memory access vulnerability. This may allow a guest to execute code on the operating system that runs Workstation or Fusion.

The bug was discovered 03/14/2017. The weakness was disclosed 06/08/2017 (Website). It is possible to read the advisory at vmware.com. This vulnerability is uniquely identified as CVE-2017-4901 since 12/26/2016. Attacking locally is a requirement. Required for exploitation is a authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by unamer in C++ and been published 2 months after the advisory. The exploit is shared for download at github.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 97939 (VMware Fusion 8.x < 8.5.5 Drag-and-Drop Feature Guest-to-Host Code Execution (VMSA-2017-0005) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370340 (VMware Workstation Pro, VMware Workstation Player and VMware Fusion Out-of-Bounds Memory Access Vulnerability (VMSA-2017-0005)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (47714), Tenable (97939) and SecurityFocus (BID 96881†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.6
VulDB Meta Temp Score: 9.1

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.9
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: unamer
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 97939
Nessus Name: VMware Fusion 8.x < 8.5.5 Drag-and-Drop Feature Guest-to-Host Code Execution (VMSA-2017-0005) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801027
OpenVAS Name: VMware Fusion Memory Corruption Vulnerability-VMSA-2017-0005 (Mac OS X)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/26/2016 🔍
03/14/2017 +78 days 🔍
03/14/2017 +0 days 🔍
03/14/2017 +0 days 🔍
03/24/2017 +10 days 🔍
06/08/2017 +76 days 🔍
06/08/2017 +0 days 🔍
06/08/2017 +0 days 🔍
07/22/2017 +44 days 🔍
12/26/2020 +1253 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: vmware.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4901 (🔍)
GCVE (CVE): GCVE-0-2017-4901
GCVE (VulDB): GCVE-100-102087
SecurityFocus: 96881 - Multiple VMware Products CVE-2017-4901 Memory Corruption Vulnerability
SecurityTracker: 1038025

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

Entryinfo

Created: 06/08/2017 20:21
Updated: 12/26/2020 13:36
Changes: 06/08/2017 20:21 (72), 11/27/2019 06:39 (12), 12/26/2020 13:36 (5)
Complete: 🔍
Committer: misc
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!