Apple iOS up to 8.4.1 WebKit information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple iOS up to 8.4.1. This affects an unknown part of the component WebKit. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2015-5921. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple iOS up to 8.4.1 (Smartphone Operating System) and classified as problematic. Affected by this vulnerability is an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

WebKit in Apple iOS before 9 mishandles "Content-Disposition: attachment" HTTP headers, which might allow man-in-the-middle attackers to obtain sensitive information via unspecified vectors.

The weakness was disclosed 09/16/2015 by Mickey Shkatov, Daoyuan Wu, Rocky K. C. Chang, ?ukasz Pilorz and superhei with Google Inc. as HT205212 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2015-5921 since 08/06/2015. The exploitation appears to be difficult. 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 attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 9 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 76766†). The entries VDB-9015, VDB-68413, VDB-77828 and VDB-77762 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 9

Timelineinfo

08/06/2015 🔍
09/16/2015 +41 days 🔍
09/16/2015 +0 days 🔍
09/16/2015 +0 days 🔍
09/18/2015 +2 days 🔍
09/18/2015 +0 days 🔍
06/16/2022 +2463 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205212
Researcher: Mickey Shkatov, Daoyuan Wu, Rocky K. C. Chang, ?ukasz Pilorz, superhei
Organization: Google Inc.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5921 (🔍)
GCVE (CVE): GCVE-0-2015-5921
GCVE (VulDB): GCVE-100-77827
SecurityFocus: 76766 - WebKit APPLE-SA-2015-09-16-1 Multiple Security Vulnerabilities
SecurityTracker: 1033609

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

Entryinfo

Created: 09/18/2015 13:09
Updated: 06/16/2022 10:50
Changes: 09/18/2015 13:09 (51), 12/25/2017 12:38 (12), 06/16/2022 10:50 (3)
Complete: 🔍
Cache ID: 216:D48:103

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

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