Apple iOS up to 8.1.2 AppleFileConduit link following

CVSS Meta Temp Score
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CTI Interest Score
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5.7$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple iOS up to 8.1.2. This affects an unknown function of the component AppleFileConduit. This manipulation causes link following. This vulnerability appears as CVE-2014-4480. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apple iOS up to 8.1.2 (Smartphone Operating System). Affected by this vulnerability is an unknown functionality of the component AppleFileConduit. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

Directory traversal vulnerability in afc in AppleFileConduit in Apple iOS before 8.1.3 and Apple TV before 7.0.3 allows attackers to access unintended filesystem locations by creating a symlink.

The weakness was presented 01/27/2015 by Rennie deGraaf with TaiG Jailbreak Team as HT204245 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2014-4480 since 06/20/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 03/07/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A vulnerability existed in the symbolic linking mechanism of afc. This issue was addressed by adding additional path checks.

The vulnerability scanner Nessus provides a plugin with the ID 81145 (Apple TV < 7.0.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 8.1.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (100532), Tenable (81145), SecurityFocus (BID 72334†) and Vulnerability Center (SBV-48260†). Additional details are provided at us-cert.gov. See VDB-67778, VDB-68232, VDB-68339 and VDB-68338 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81145
Nessus Name: Apple TV < 7.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 8.1.3

Timelineinfo

06/20/2014 🔍
01/27/2015 +221 days 🔍
01/27/2015 +0 days 🔍
01/27/2015 +0 days 🔍
01/27/2015 +0 days 🔍
01/28/2015 +1 days 🔍
01/29/2015 +1 days 🔍
01/30/2015 +1 days 🔍
03/07/2022 +2593 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT204245
Researcher: Rennie deGraaf
Organization: TaiG Jailbreak Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4480 (🔍)
GCVE (CVE): GCVE-0-2014-4480
GCVE (VulDB): GCVE-100-68923
X-Force: 100532 - Apple iOS AppleFileConduit security bypass, Medium Risk
SecurityFocus: 72334 - Multiple Apple Products Multiple Security Vulnerabilities
SecurityTracker: 1031652
SecuriTeam: 1031652
Vulnerability Center: 48260 - Apple iOS before 8.1.3 Remote Directory traversal vulnerability via a Maliciously Crafted \x27AppleFileConduit\x27 Command, Critical

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

Entryinfo

Created: 01/29/2015 15:41
Updated: 03/07/2022 16:12
Changes: 01/29/2015 15:41 (75), 06/18/2017 09:39 (5), 03/07/2022 16:05 (3), 03/07/2022 16:12 (1)
Complete: 🔍
Cache ID: 216:120:103

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