Apple iOS/iPadOS up to 16.3.0 WebKit type confusion

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k0.00

A vulnerability has been found in Apple iOS and iPadOS up to 16.3.0 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown code of the component WebKit. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 02/13/2023 as HT213635 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2023-23529. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/15/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

It is declared as highly functional. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 02/14/2023 with a due date of 03/07/2023:

Apply updates per vendor instructions.

Upgrading to version 16.3.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A type confusion issue was addressed with improved checks.

Similar entries are available at VDB-220944, VDB-220948 and VDB-220949.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
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Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 16.3.1

Timelineinfo

01/12/2023 🔍
02/13/2023 +32 days 🔍
02/13/2023 +0 days 🔍
02/14/2023 +1 days 🔍
05/15/2024 +456 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213635
Status: Confirmed

CVE: CVE-2023-23529 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 02/14/2023 16:22
Updated: 05/15/2024 17:15
Changes: 02/14/2023 16:22 (9), 02/14/2023 16:23 (9), 02/14/2023 16:26 (26), 02/14/2023 16:28 (5), 03/15/2023 07:12 (2), 03/15/2023 07:19 (11), 04/28/2024 08:19 (23), 05/15/2024 17:15 (1)
Complete: 🔍
Cache ID: 3:179:103

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