Apple macOS up to 13.4 Javascript Code privilege escalation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 13.4. It has been declared as critical. Affected is an unknown function of the component Javascript Code Handler. Such manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2023-40397. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 13.4 (Operating System). It has been rated as critical. Affected by this issue is some unknown processing of the component Javascript Code Handler. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.5. A remote attacker may be able to cause arbitrary javascript code execution.

The weakness was shared 09/07/2023 as HT213843. The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2023-40397 since 08/14/2023. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 209883 (RHEL 9 : webkit2gtk3 (RHSA-2024:8496)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 13.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209883). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Apple

Name

macOS

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 209883
Nessus Name: RHEL 9 : webkit2gtk3 (RHSA-2024:8496)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: macOS 13.5

Timelineinfo

08/14/2023 🔍
09/07/2023 +24 days 🔍
09/07/2023 +0 days 🔍
10/30/2024 +419 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213843
Status: Confirmed

CVE: CVE-2023-40397 (🔍)
GCVE (CVE): GCVE-0-2023-40397
GCVE (VulDB): GCVE-100-239084
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 09/07/2023 08:31
Updated: 10/30/2024 09:40
Changes: 09/07/2023 08:31 (41), 10/02/2023 16:35 (11), 10/30/2024 09:40 (16)
Complete: 🔍
Cache ID: 216::103