Apple tvOS up to 10.1 JavaScriptCore String.replace Universal cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Apple tvOS up to 10.1. Impacted is the function String.replace of the component JavaScriptCore. Performing a manipulation results in cross site scripting (Universal). This vulnerability was named CVE-2017-2492. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 10.1 (Digital Media Player). It has been classified as critical. This affects the function String.replace of the component JavaScriptCore. The manipulation with an unknown input leads to a cross site scripting vulnerability (Universal). CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "JavaScriptCore" component. It allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted web site that triggers prototype mishandling.

The bug was discovered 03/27/2018. The weakness was presented 04/03/2018 by Gustavo Grieco as HT207600 (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2017-2492 since 12/01/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 99167 (macOS : Apple Safari < 10.1 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.

Upgrading to version 10.2 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99167) and SecurityFocus (BID 94554†). See VDB-95939, VDB-96539, VDB-97603 and VDB-98600 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

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

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Name: Universal
Class: Cross site scripting / Universal
CWE: CWE-79 / CWE-94 / CWE-74
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: 99167
Nessus Name: macOS : Apple Safari < 10.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tvOS 10.2

Timelineinfo

11/28/2016 🔍
12/01/2016 +3 days 🔍
03/27/2017 +116 days 🔍
04/03/2017 +7 days 🔍
03/27/2018 +358 days 🔍
04/03/2018 +7 days 🔍
04/03/2018 +0 days 🔍
04/03/2018 +0 days 🔍
01/20/2020 +657 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207600
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2492 (🔍)
GCVE (CVE): GCVE-0-2017-2492
GCVE (VulDB): GCVE-100-115593
SecurityFocus: 94554 - WebKit CVE-2016-9642 Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 04/03/2018 14:32
Updated: 01/20/2020 15:02
Changes: 04/03/2018 14:32 (73), 01/20/2020 15:02 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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