Apple iOS 7.1.1 Passcode Siri improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple iOS 7.1.1. Affected is an unknown function of the component Passcode Handler. Performing a manipulation results in improper authentication (Siri). Furthermore, an exploit is available. You should change the configuration settings.

Detailsinfo

A vulnerability was found in Apple iOS 7.1.1 (Smartphone Operating System). It has been classified as problematic. This affects some unknown functionality of the component Passcode Handler. The manipulation with an unknown input leads to a improper authentication vulnerability (Siri). CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, and integrity.

The weakness was published 05/04/2014 by Sherif Hashim as iOS 7.1.1 passcode lock trick to fully access contacts as confirmed video (Youtube). It is possible to read the advisory at youtube.com. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

iOS 7.1.1 passcode lock bypass with full access to the contacts list, very easy, and with additional single manipulation (i m not showing that) you can access all the contacts details, edit/copy/share/message/email them, anyway, keep secure and disable Siri on lock screen till the next iOS update

A public exploit has been developed by Sherif Hashim and been published immediately after the advisory. The exploit is shared for download at youtu.be. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k.

It is possible to mitigate the problem by applying the configuration setting Disable Siri. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

Video

Open Video | Show More Videos

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.1
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Name: Siri
Class: Improper authentication / Siri
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Sherif Hashim
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Config
Status: 🔍

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

Config: Disable Siri

Timelineinfo

05/04/2014 🔍
05/04/2014 +0 days 🔍
05/04/2014 +0 days 🔍
05/07/2014 +3 days 🔍
04/23/2019 +1812 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: iOS 7.1.1 passcode lock trick to fully access contacts
Researcher: Sherif Hashim
Status: Confirmed

GCVE (VulDB): GCVE-100-13155
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 05/07/2014 10:50
Updated: 04/23/2019 17:20
Changes: 05/07/2014 10:50 (52), 04/23/2019 17:20 (2)
Complete: 🔍
Cache ID: 216::103

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