Apple iOS up to 8.4.0 UIKit WebView input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 8.4.0 and classified as critical. The impacted element is an unknown function of the component UIKit WebView. The manipulation results in input validation. This vulnerability is reported as CVE-2015-3758. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Apple iOS up to 8.4.0 (Smartphone Operating System). It has been classified as critical. Affected is an unknown code of the component UIKit WebView. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

UIKit WebView in Apple iOS before 8.4.1 allows attackers to bypass an intended user-confirmation requirement and initiate arbitrary FaceTime calls via an app that provides a crafted URL.

The weakness was disclosed 08/11/2015 by Cererdlong with Alibaba Mobile Security Team as HT205030 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2015-3758 since 05/07/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/10/2022). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 77257 (AIX 6.1 TL 8 : libxml2 (IV62447)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks.

Upgrading to version 8.4.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (77257), SecurityFocus (BID 76337†), SecurityTracker (ID 1033275†) and Vulnerability Center (SBV-52043†). The entries VDB-77102, VDB-77103, VDB-77104 and VDB-77105 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 77257
Nessus Name: AIX 6.1 TL 8 : libxml2 (IV62447)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702978
OpenVAS Name: Debian Security Advisory DSA 2978-1 (libxml2 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Upgrade: iOS 8.4.1

Timelineinfo

05/07/2015 🔍
08/11/2015 +96 days 🔍
08/11/2015 +0 days 🔍
08/13/2015 +2 days 🔍
08/13/2015 +0 days 🔍
08/14/2015 +1 days 🔍
08/14/2015 +0 days 🔍
08/16/2015 +2 days 🔍
08/17/2015 +1 days 🔍
06/10/2022 +2489 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205030
Researcher: Cererdlong
Organization: Alibaba Mobile Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3758 (🔍)
GCVE (CVE): GCVE-0-2015-3758
GCVE (VulDB): GCVE-100-77172
SecurityFocus: 76337 - Apple iOS APPLE-SA-2015-08-13-3 Multiple Security Vulnerabilities
SecurityTracker: 1033275 - Apple iOS Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Deny Service and Let Apps Gain Elevated Privileges
Vulnerability Center: 52043 - Apple iOS <8.4.1 Remote Bypass Restrictions via an App Providing a Crafted URL - CVE-2015-3758, Medium

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

Entryinfo

Created: 08/14/2015 12:48
Updated: 06/10/2022 05:55
Changes: 08/14/2015 12:48 (69), 10/15/2017 11:35 (11), 06/10/2022 05:55 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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