Apple iOS up to 7.1 WebKit 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 classified as critical has been found in Apple iOS up to 7.1. Affected by this issue is some unknown functionality of the component WebKit. Performing a manipulation results in input validation. This vulnerability is reported as CVE-2013-2871. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 7.1 (Smartphone Operating System). It has been classified as critical. This affects some unknown processing of the component WebKit. 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. The summary by CVE is:

Use-after-free vulnerability in Google Chrome before 28.0.1500.71 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the handling of input.

The weakness was disclosed 04/22/2014 by miaubiz with Apple as HT6208 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The public release has been coordinated in cooperation with Apple. This vulnerability is uniquely identified as CVE-2013-2871 since 04/11/2013. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 02/03/2019). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple memory corruption issues existed in WebKit.

The vulnerability scanner Nessus provides a plugin with the ID 73304 (Mac OS X : Apple Safari < 6.1.3 / 7.0.3 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 122790 (Apple iTunes Prior to 12.0.1 Multiple Vulnerabilities (HT6537)).

Upgrading to version 7.1.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

These issues were addressed through improved memory handling.

The vulnerability is also documented in the databases at Tenable (73304), SecurityFocus (BID 64361†), Secunia (SA58140†) and Vulnerability Center (SBV-57783†). The entries VDB-8662, VDB-8869, VDB-8995 and VDB-9457 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Apple iPhone 4/5
  • Apple iPod Touch 5
  • iPad 2/3

Productinfo

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Vendor

Name

Version

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Website

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

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

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: 73304
Nessus Name: Mac OS X : Apple Safari < 6.1.3 / 7.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 892724
OpenVAS Name: Debian Security Advisory DSA 2724-1 (chromium-browser - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 7.1.1

Timelineinfo

04/11/2013 🔍
07/10/2013 +90 days 🔍
12/16/2013 +159 days 🔍
04/02/2014 +107 days 🔍
04/22/2014 +20 days 🔍
04/22/2014 +0 days 🔍
04/23/2014 +1 days 🔍
04/23/2014 +0 days 🔍
05/22/2014 +29 days 🔍
03/29/2016 +677 days 🔍
02/03/2019 +1041 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT6208
Researcher: miaubiz
Organization: Apple
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-2871 (🔍)
GCVE (CVE): GCVE-0-2013-2871
GCVE (VulDB): GCVE-100-13047

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 64361 - WebKit CVE-2013-5199 Unspecified Memory Corruption Vulnerability
Secunia: 58140 - Apple iOS Multiple Vulnerabilities, Highly Critical
Vulnerability Center: 57783 - Google Chrome <28.0.1500.71 Input Handling Use-After-Free Vulnerability Allows Remote DoS or Other Impact - CVE-2013-2871, High

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

Entryinfo

Created: 04/23/2014 16:35
Updated: 02/03/2019 10:14
Changes: 04/23/2014 16:35 (85), 02/03/2019 10:14 (9)
Complete: 🔍
Cache ID: 216:07B:103

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