Apple iOS up to 9.2.0 WebKit CSS a:visited button information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 9.2.0. It has been classified as problematic. The impacted element is an unknown function of the component WebKit CSS. The manipulation of the argument a:visited button leads to information disclosure. This vulnerability is documented as CVE-2016-1728. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.2.0 (Smartphone Operating System). It has been rated as problematic. This issue affects an unknown code block of the component WebKit CSS. The manipulation of the argument a:visited button with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The weakness was released 01/19/2016 by Joe Vennix with Apple as HT205732 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2016-1728 since 01/13/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

A privacy issue existed in the handling of the "a:visited button" CSS selector when evaluating the containing element's height. This was addressed through improved validation.

The vulnerability scanner Nessus provides a plugin with the ID 88597 (Mac OS X : Apple Safari < 9.0.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124582 (Apple Safari 9.0.3 Not Installed (APPLE-SA-2016-01-19-3)).

Upgrading to version 9.2.1 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 Tenable (88597) and SecurityFocus (BID 81263†). Entries connected to this vulnerability are available at VDB-80340, VDB-80341, VDB-80342 and VDB-80343. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 88597
Nessus Name: Mac OS X : Apple Safari < 9.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 12024
OpenVAS Name: Mageia Linux Local Check: mgasa-2016-0116
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 9.2.1

Timelineinfo

01/13/2016 🔍
01/19/2016 +6 days 🔍
01/19/2016 +0 days 🔍
01/19/2016 +0 days 🔍
01/21/2016 +2 days 🔍
02/01/2016 +11 days 🔍
02/05/2016 +4 days 🔍
07/03/2022 +2340 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205732
Researcher: Joe Vennix
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1728 (🔍)
GCVE (CVE): GCVE-0-2016-1728
GCVE (VulDB): GCVE-100-80351
SecurityFocus: 81263 - WebKit Multiple Security Vulnerabilities
SecurityTracker: 1034737

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

Entryinfo

Created: 01/21/2016 09:39
Updated: 07/03/2022 19:41
Changes: 01/21/2016 09:39 (64), 06/25/2018 09:16 (22), 07/03/2022 19:41 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!