Apple iOS up to 7.1 Facetime Audio-Only URL access control

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple iOS up to 7.1. Impacted is an unknown function of the component Facetime Audio-Only URL Handler. The manipulation results in access control. This vulnerability is known as CVE-2013-6835. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS up to 7.1 (Smartphone Operating System). Affected is an unknown function of the component Facetime Audio-Only URL Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity. CVE summarizes:

TelephonyUI Framework in Apple iOS 7 before 7.1, when Safari is used, does not require user confirmation for FaceTime audio calls, which allows remote attackers to obtain telephone number or e-mail address information via a facetime-audio: URL.

The weakness was published 03/10/2014 by Guillaume Ross with Binaryfactory as iOS 7.0.6 Safari/Facetime-Audio Privacy issue as confirmed mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. The public release has been coordinated with the vendor. This vulnerability is traded as CVE-2013-6835 since 11/20/2013. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:

Facetime allows video calls for iOS. Facetime-Audio, added in iOS 7, allows audio only calls. The audio version uses a vulnerable URL scheme which is not used by Facetime Video. The URL Scheme used for Facetime-Audio allows a website to establish a Facetime-audio call to the attacker's account, revealing the phone number or email address of the user browsing the site. A user browsing the web could click a malicious link or load a page containing a malicious link within an inline frame. The user would then automatically contact the phone number or email address specified in the URL, revealing his identity to the attacker.

A public exploit has been developed by Guillaume Ross. The exploit is shared for download at seclists.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

Upgrading to version 7.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (91748), Exploit-DB (39114) and SecurityFocus (BID 66108†). Further details are available at support.apple.com. Similar entries are available at VDB-5639, VDB-9023, VDB-11525 and VDB-11527. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Guillaume Ross
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 7.1

Timelineinfo

11/20/2013 🔍
03/10/2014 +110 days 🔍
03/10/2014 +0 days 🔍
03/14/2014 +4 days 🔍
03/14/2014 +0 days 🔍
10/14/2024 +3867 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: iOS 7.0.6 Safari/Facetime-Audio Privacy issue
Researcher: Guillaume Ross
Organization: Binaryfactory
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-6835 (🔍)
GCVE (CVE): GCVE-0-2013-6835
GCVE (VulDB): GCVE-100-12600

IAVM: 🔍

X-Force: 91748 - Apple iOS TelephonyUI framework security bypass, Medium Risk
SecurityFocus: 66108 - Apple iOS 'facetime-audio://' Security Bypass Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150917
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/14/2014 13:33
Updated: 10/14/2024 02:02
Changes: 03/14/2014 13:33 (55), 03/31/2019 14:47 (21), 10/14/2024 02:02 (22)
Complete: 🔍
Committer:
Cache ID: 216:51D:103

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

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