VDB-272876 · CVE-2024-40794 · Nessus 212176

Apple iOS/iPadOS Private Browsing Tab improper authentication

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.
5.3	$5k-$25k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple iOS and iPadOS. Affected is an unknown function of the component Private Browsing Tab Handler. Such manipulation leads to improper authentication. This vulnerability is documented as CVE-2024-40794. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS (affected version not known) and classified as critical. Affected by this issue is some unknown functionality of the component Private Browsing Tab Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

This issue was addressed through improved state management. This issue is fixed in Safari 17.6, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6. Private Browsing tabs may be accessed without authentication.

The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2024-40794 since 07/10/2024. The exploitation is known to be easy. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/04/2026).

The vulnerability scanner Nessus provides a plugin with the ID 212176 (Apple Safari 17.6 Multiple Vulnerabilities (120913)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (212176). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

ADP CISA Base Score: 5.3
ADP CISA 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: Improper authentication
CWE: CWE-287
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: 212176
Nessus Name: Apple Safari 17.6 Multiple Vulnerabilities (120913)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2024 🔍
07/30/2024 +20 days 🔍
07/30/2024 +0 days 🔍
04/04/2026 +613 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2024-40794 (🔍)
GCVE (CVE): GCVE-0-2024-40794
GCVE (VulDB): GCVE-100-272876
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 07/30/2024 08:40
Updated: 04/04/2026 12:51
Changes: 07/30/2024 08:40 (55), 07/31/2024 14:56 (1), 08/23/2024 21:26 (11), 12/09/2024 17:20 (2), 04/04/2026 12:51 (10)
Complete: 🔍
Cache ID: 216:E82:103