Privilege escalation in VMware Integrated OpenStack with Kubernetes and vSphere Integrated Container
| Risk | Medium |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-5736 |
| CWE-ID | CWE-264 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
vSphere Integrated Containers Client/Desktop applications / Software for system administration Integrated OpenStack Client/Desktop applications / Software for system administration |
| Vendor | VMware, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Privilege escalation
EUVDB-ID: #VU17474
Risk: Medium
CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green]
CVE-ID: CVE-2019-5736
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to gain elevated privileges.
The weakness exists in the runc container runtime due to file-descriptor mishandling, related to /proc/self/exe. A remote attacker can leverage the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec, overwrite the host runc binary with minimal user interaction and execute arbitrary code with root privileges.
Successful exploitation of the vulnerability may result in system compromise.
Cybersecurity Help is currently unaware of any official solution to address the vulnerability.
Vulnerable software versionsvSphere Integrated Containers: 1.0 - 1.5
Integrated OpenStack: 5.0 - 5.1
CPE2.3- cpe:2.3:a:vmware:vsphere_integrated_containers:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:vsphere_integrated_containers:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:vsphere_integrated_containers:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:integrated_openstack:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:integrated_openstack:5.1:*:*:*:*:*:*:*
https://www.vmware.com/security/advisories/VMSA-2019-0001.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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
