Apple iOS/iPadOS up to 13.4.1 Accounts denial of service

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$5k-$25k0.00

A vulnerability, which was classified as problematic, has been found in Apple iOS and iPadOS up to 13.4.1 (Smartphone Operating System). Affected by this issue is some unknown functionality of the component Accounts. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability.

The weakness was presented 05/20/2020 by Jannik Lorenz with TU Darmstadt as HT211168 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2020-9827 since 03/02/2020. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/20/2020). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability is assigned to T1499 by the MITRE ATT&CK project. The advisory points out:

A denial of service issue was addressed with improved input validation.

Upgrading to version 13.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See 155673, 155707, 155739 and 155740 for similar entries.

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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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Exploitinginfoedit

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Interest: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 13.5

Timelineinfoedit

03/02/2020 🔍
05/20/2020 +79 days 🔍
05/20/2020 +0 days 🔍
05/29/2020 +9 days 🔍
10/20/2020 +144 days 🔍

Sourcesinfoedit

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

Advisory: HT211168
Researcher: Jannik Lorenz
Organization: TU Darmstadt
Status: Confirmed

CVE: CVE-2020-9827 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfoedit

Created: 05/30/2020 12:38 AM
Updated: 10/20/2020 06:42 AM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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