Apple macOS up to 10.13.4 CUPS improper authorization

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.13.4. Affected by this issue is some unknown functionality of the component CUPS. The manipulation leads to improper authorization. This vulnerability is listed as CVE-2018-4182. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.13.4 (Operating System). This issue affects an unknown functionality of the component CUPS. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In macOS High Sierra before 10.13.5, an access issue was addressed with additional sandbox restrictions on CUPS.

The bug was discovered 06/01/2018. The weakness was presented 08/07/2018 (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2018-4182 since 01/02/2018. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 111587 (openSUSE Security Update : cups (openSUSE-2018-822)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171416 (OpenSUSE Security Update for cups (openSUSE-SU-2018:2239-1)).

Upgrading to version 10.13.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111587). See VDB-118673, VDB-118642, VDB-118643 and VDB-118645 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Apple

Name

• macOS

Version

• 10.13.0
• 10.13.1
• 10.13.2
• 10.13.3
• 10.13.4

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion