Apple iOS/iPadOS CFNetwork certificate validation

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	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS. It has been rated as critical. This issue affects some unknown processing of the component CFNetwork. The manipulation leads to certificate validation. This vulnerability is documented as CVE-2022-42813. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple iOS and iPadOS (Smartphone Operating System) (version unknown). This issue affects an unknown function of the component CFNetwork. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability.

The weakness was released 10/24/2022 as HT213489 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2022-42813. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/22/2025). It is expected to see the exploit prices for this product increasing in the near future.The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK. The advisory points out:

Processing a maliciously crafted certificate may lead to arbitrary code execution

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

A certificate validation issue existed in the handling of WKWebView. This issue was addressed with improved validation.

Statistical analysis made it clear that VulDB provides the best quality 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: 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: Certificate validation
CWE: CWE-295 / 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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

10/11/2022 🔍
10/24/2022 +13 days 🔍
10/24/2022 +0 days 🔍
10/25/2022 +1 days 🔍
04/22/2025 +910 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213489
Status: Confirmed

CVE: CVE-2022-42813 (🔍)
GCVE (CVE): GCVE-0-2022-42813
GCVE (VulDB): GCVE-100-212051
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 10/25/2022 07:19
Updated: 04/22/2025 22:36
Changes: 10/25/2022 07:19 (15), 10/25/2022 07:22 (28), 10/25/2022 07:39 (1), 11/19/2022 17:25 (2), 11/19/2022 17:33 (11), 04/22/2025 22:36 (15)
Complete: 🔍
Cache ID: 216::103