Apple iOS/iPadOS up to 13.1.3 Broadcom Wi-Fi toctou

CVSS Meta Temp Score
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Apple iOS and iPadOS up to 13.1.3. Impacted is an unknown function of the component Broadcom Wi-Fi. Executing a manipulation can lead to toctou. The identification of this vulnerability is CVE-2019-15126. The attack needs to be done within the local network. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS up to 13.1.3 (Smartphone Operating System). It has been declared as problematic. This vulnerability affects some unknown functionality of the component Broadcom Wi-Fi. The manipulation with an unknown input leads to a toctou vulnerability. The CWE definition for the vulnerability is CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. As an impact it is known to affect confidentiality. CVE summarizes:

An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.

The weakness was shared 02/05/2020 as HT21072 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2019-15126 since 08/17/2019. The exploitation appears to be difficult. The attack can only be initiated within the local network. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at packetstormsecurity.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Upgrading to version 13.2 eliminates this vulnerability. The upgrade is hosted for download at support.apple.com.

The vulnerability is also documented in the vulnerability database at Exploit-DB (48233). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 2.9

VulDB Base Score: 3.1
VulDB Temp Score: 2.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS/iPadOS 13.2

Timelineinfo

08/17/2019 🔍
02/05/2020 +172 days 🔍
02/06/2020 +1 days 🔍
05/25/2025 +1935 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT21072
Status: Confirmed

CVE: CVE-2019-15126 (🔍)
GCVE (CVE): GCVE-0-2019-15126
GCVE (VulDB): GCVE-100-149704
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 02/06/2020 10:35
Updated: 05/25/2025 11:51
Changes: 02/06/2020 10:35 (44), 02/06/2020 10:40 (18), 07/03/2024 00:59 (24), 05/25/2025 11:51 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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