Security restrictions bypass in Bluez

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU23113

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10910

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists in BlueZ due to an error that may allow an attacker to turn on the Bluetooth Discoverable state, when no Bluetooth agent is registered with the system. A remote attacker with physical proximity to the device can remotely turn on Bluetooth agent and access the device without authorization in some cases.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.0 - 5.50

CPE2.3

• cpe:2.3:a:bluez.org:bluez:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:bluez.org:bluez:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:bluez.org:bluez:5.2:*:*:*:*:*:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10910

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.