#VU1245 Improper file permissions handling in macOS Server and macOS - CVE-2007-0117

Vulnerability identifier: #VU1245

Vulnerability risk: Medium

CVSSv4.0: 6.8 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2007-0117

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
macOS Server
Operating systems & Components / Operating system
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local user to escalation privileges on vulnerable system.

The vulnerability exists in diskutil tool within DiskManagement framework when handling BOM files. A local user can create a specially crafted BOM file, run diskutil with specially crafted BOM file and replace permissions for arbitrary files on vulnerable system.

Successful exploitation of this vulnerability allows a local unprivileged user to elevate his privileges and gain root access to vulnerable system.

Note: the vulnerability is being actively exploited.

Mitigation
Cybersecurity Help is not aware of any official solution to address this vulnerability.

Vulnerable software versions

macOS Server: 10.4.8

macOS: 10.4.8 8L127

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External links
https://jon.oberheide.org/moab/MOAB-05-01-2007.html
https://rixstep.com/2/2/20070810,00.shtml

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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. However, a fully functional exploit for this vulnerability is available.