Apple macOS up to 10.12.2 Help Viewer cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability was found in Apple macOS up to 10.12.2 (Operating System). It has been rated as problematic. Affected by this issue is some unknown processing of the component Help Viewer. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

An issue was discovered in certain Apple products. macOS before 10.12.3 is affected. The issue involves the "Help Viewer" component, which allows XSS attacks via a crafted web site.

The bug was discovered 01/23/2017. The weakness was presented 01/23/2017 by Ian Beer (lokihardt) with Google Project Zero as HT207483 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2017-2361 since 12/01/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

A cross-site scripting issue was addressed through improved URL validation.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 96731 (macOS 10.12.x < 10.12.3 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 c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370282 (Apple macOS Sierra Security Update 10.12.3 Not Installed (APPLE-SA-2017-01-23-2)).

Upgrading to version 10.12.3 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 Exploit-DB (41443), Tenable (96731) and SecurityFocus (BID 95723†). See VDB-93756, VDB-95903, VDB-95902 and VDB-95914 for similar entries.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
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NVD Base Score: 6.1
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CVSSv2info

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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 96731
Nessus Name: macOS 10.12.x < 10.12.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 February-2017
OpenVAS File: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: macOS 10.12.3
Suricata ID: 2024034
Suricata Class: 🔍
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Timelineinfo

12/01/2016 🔍
01/23/2017 +53 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
01/25/2017 +1 days 🔍
02/20/2017 +26 days 🔍
11/03/2022 +2082 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207483
Researcher: Ian Beer (lokihardt)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2361 (🔍)
SecurityFocus: 95723 - Apple macOS APPLE-SA-2017-01-23-2 Multiple Security Vulnerabilities
OSVDB: - CVE-2017-2361 - Apple - macOS - Cross-Site Scripting Issue
SecurityTracker: 1037671

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 01/25/2017 11:41 AM
Updated: 11/03/2022 04:44 PM
Changes: 01/25/2017 11:41 AM (85), 07/31/2020 12:12 PM (11), 11/03/2022 04:44 PM (3)
Complete: 🔍
Cache ID: 18:B0A:40

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