Privilege escalation in Bitdefender

1) Privilege escalation

EUVDB-ID: #VU7990

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-10950

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

Exploit availability: No

Description

The vulnerability allows  a local attacker to gain elevated privileges on vulnerable installations of Bitdefender Total Security.

The weakness exist due to the lack of validating the existence of an object prior to performing operations on the object. A local attacker can trigger double-free error within processing of the 0x8000E038 IOCTL in the bdfwfpf driver and execute arbitrary code with system privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

The vulnerability is addressed in the following versions: 2017 Build 21.2.25.30 and 2018 Build 22.0.8.114 or later.

Vulnerable software versions

Bitdefender Total Security: 2017 - 2018

CPE2.3

• cpe:2.3:a:bitdefender:bitdefender_total_security:2017:*:*:*:*:*:*:*
• cpe:2.3:a:bitdefender:bitdefender_total_security:2018:*:*:*:*:*:*:*

External links

https://www.zerodayinitiative.com/advisories/ZDI-17-693/

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.