#VU18664 Improper access control


Published: 2019-06-03 | Updated: 2019-06-03

Vulnerability identifier: #VU18664

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2019-3895

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Octavia
Server applications / Other server solutions

Vendor: Openstack

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions within "_extract_amp_image_id_by_tag" in "octavia/compute/drivers/nova_driver.py" that does not filter images and used images owned by pre-defined tenant. A remote non-privileged user can tag an image with the 'amphora' tag and set it to "public=true" to gain unauthorized access to lb-mgmt network.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Octavia: 0.8.0 - 0.8.1


CPE

External links
http://bugs.launchpad.net/octavia/+bug/1620629


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability