Multiple vulnerabilities in VMware products
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-3950 CVE-2020-3951 |
| CWE-ID | CWE-264 CWE-122 |
| Exploitation vector | Local |
| Public exploit | Vulnerability #1 is being exploited in the wild. |
| Vulnerable software Subscribe |
VMware Fusion Client/Desktop applications / Virtualization software VMware Workstation Client/Desktop applications / Virtualization software VMRC Client/Desktop applications / Software for system administration VMware Horizon Client Client/Desktop applications / Software for system administration |
| Vendor | VMware, Inc |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Updated: 18.03.2020
Added exploit to vulnerability #1.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU26147
Risk: Low
CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2020-3950
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper use of setuid binaries. A local user can execute arbitrary code on the system with elevated privileges.
Note: the vulnerability affects VMware Fusion, VMware Remote Console for Mac and Horizon Client for Mac.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVMware Fusion: 11.0.0 - 11.5.1
VMRC: 8.0.0 - 11.0.0
VMware Horizon Client: 3.0.0 - 5.3
External linkshttp://www.vmware.com/security/advisories/VMSA-2020-0005.html
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
2) Heap overflow
EUVDB-ID: #VU26148
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-3951
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within Cortado Thinprint. A local user can trigger heap overflow and crash the Thinprint service running on the system where Workstation or Horizon Client is installed.
Install updates from vendor's website.
Vulnerable software versionsVMware Workstation: 15.5.0 - 15.5.1
VMware Horizon Client: 3.0.0 - 5.3
External linkshttp://www.vmware.com/security/advisories/VMSA-2020-0005.html
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
