Apple macOS up to 10.13.4 CUPS improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple macOS up to 10.13.4. Affected by this vulnerability is an unknown functionality of the component CUPS. Executing a manipulation can lead to improper authorization. This vulnerability is tracked as CVE-2018-4181. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Apple macOS up to 10.13.4 (Operating System). This vulnerability affects an unknown function of the component CUPS. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In macOS High Sierra before 10.13.5, an issue existed in CUPS. This issue was addressed with improved access restrictions.

The bug was discovered 05/09/2018. The weakness was disclosed 07/11/2018 (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2018-4181 since 01/02/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

The vulnerability was handled as a non-public zero-day exploit for at least 63 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 111014 (Debian DSA-4243-1 : cups - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197201 (Ubuntu Security Notification for Cups Vulnerabilities (USN-3713-1)).

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 (111014). The entries VDB-112951, VDB-115040, VDB-118673 and VDB-118642 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.4
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111014
Nessus Name: Debian DSA-4243-1 : cups - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: macOS 10.13.5

Timelineinfo

01/02/2018 🔍
05/09/2018 +127 days 🔍
07/11/2018 +63 days 🔍
07/11/2018 +0 days 🔍
07/12/2018 +1 days 🔍
01/11/2019 +183 days 🔍
01/12/2019 +1 days 🔍
06/26/2023 +1626 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: USN-3713-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4181 (🔍)
GCVE (CVE): GCVE-0-2018-4181
GCVE (VulDB): GCVE-100-129052

OVAL: 🔍
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 01/12/2019 12:04
Updated: 06/26/2023 11:21
Changes: 01/12/2019 12:04 (75), 04/28/2020 21:32 (2), 06/26/2023 11:21 (4)
Complete: 🔍
Cache ID: 216:7FE:103

Once again VulDB remains the best source for vulnerability data.

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