Multiple vulnerabilities in BlueZ
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-26558 CVE-2021-0129 |
| CWE-ID | CWE-254 CWE-284 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
BlueZ Universal components / Libraries / Libraries used by multiple products |
| Vendor | BlueZ Project |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Security features bypass
EUVDB-ID: #VU53579
Risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-26558
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to an impersonation in the Passkey Entry protocol flaw. A remote attacker on the local network can perform a man-in-the-middle (MITM) attack and impersonate the initiating device without any previous knowledge.
Note: This vulnerability affects the following specifications:
- BR/EDR Secure Simple Pairing in Bluetooth Core Specifications 2.1 through 5.2
- BR/EDR Secure Connections Pairing in Bluetooth Core Specifications 4.1 through 5.2
- LE Secure Connections Pairing in Bluetooth Core Specifications 4.2 through 5.2
Mitigation
Install update from vendor's website.
Vulnerable software versionsBlueZ: 5.0 - 5.56
External linkshttp://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.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.
2) Improper access control
EUVDB-ID: #VU54202
Risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-0129
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote authenticated attacker on the local network can bypass implemented security restrictions and enable information disclosure
MitigationInstall update from vendor's website.
Vulnerable software versionsBlueZ: 5.0 - 5.56
External linkshttp://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
