Privilege escalation in BlueZ



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-0556
CWE-ID CWE-264
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 BlueZ
Universal components / Libraries / Libraries used by multiple products

Vendor BlueZ Project

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU26047

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/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-2020-0556

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper access control in subsystem for BlueZ. A remote attacker on the local network can gain elevated privileges on the target system and cause a denial of service (DoS) condition.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.0 - 5.52

CPE2.3 External links

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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