Apple macOS up to 10.13.5 libxpc access control

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apple macOS up to 10.13.5. This issue affects some unknown processing of the component libxpc. The manipulation leads to access control. This vulnerability is documented as CVE-2018-4237. The attack needs to be performed locally. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.13.5 (Operating System) and classified as critical. This issue affects an unknown code of the component libxpc. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The bug was discovered 05/29/2018. The weakness was released 06/01/2018 with Zero Day Initiative as HT208849 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2018-4237 since 01/02/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

A logic issue was addressed with improved validation.

A public exploit has been developed by saelo and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 78 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 110324 (macOS 10.13.x < 10.13.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370985 (Apple macOS High Sierra 10.13.5, Security Update 2018-003 Sierra, Security Update 2018-003 El Capitan Not Installed).

Upgrading to version 10.13.5 2018-003 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (45916) and Tenable (110324). Entries connected to this vulnerability are available at VDB-118673, VDB-118642, VDB-118643 and VDB-118644. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: saelo
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110324
Nessus Name: macOS 10.13.x < 10.13.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: libxpc_mitm_ssudo.rb
MetaSploit Name: Mac OS X libxpc MITM Privilege Escalation
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.13.5 2018-003

Timelineinfo

01/02/2018 🔍
03/15/2018 +71 days 🔍
05/29/2018 +75 days 🔍
06/01/2018 +3 days 🔍
06/01/2018 +0 days 🔍
06/03/2018 +2 days 🔍
06/05/2018 +2 days 🔍
06/08/2018 +3 days 🔍
12/26/2024 +2393 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208849
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4237 (🔍)
GCVE (CVE): GCVE-0-2018-4237
GCVE (VulDB): GCVE-100-118661
SecurityFocus: 103204
SecurityTracker: 1041027

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

Entryinfo

Created: 06/03/2018 14:15
Updated: 12/26/2024 12:12
Changes: 06/03/2018 14:15 (66), 02/12/2020 08:31 (19), 03/20/2023 08:07 (5), 03/20/2023 08:10 (1), 07/25/2024 14:57 (16), 08/25/2024 17:45 (2), 08/25/2024 17:48 (1), 12/26/2024 12:12 (2)
Complete: 🔍
Committer: misc
Cache ID: 216::103

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