VDB-118761 · CVE-2018-4190 · HT208854

Apple Safari up to 11.1.0 WebKit insufficiently protected credentials

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple Safari up to 11.1.0. Impacted is an unknown function of the component WebKit. Performing a manipulation results in insufficiently protected credentials. This vulnerability is identified as CVE-2018-4190. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari up to 11.1.0 (Web Browser). It has been classified as problematic. This affects some unknown processing of the component WebKit. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. CWE is classifying the issue as CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. This is going to have an impact on confidentiality.

The bug was discovered 06/01/2018. The weakness was released 06/01/2018 as HT208854 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4190 since 01/02/2018. 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. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue. The advisory points out:

Credentials were unexpectedly sent when fetching CSS mask images. This was addressed by using a CORS-enabled fetch method.

The vulnerability scanner Nessus provides a plugin with the ID 120240 (Fedora 28 : webkit2gtk3 (2018-118b9abf99)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370984 (Apple iCloud for Windows Prior to 7.5 Multiple Vulnerabilities(HT208853)).

Upgrading to version 11.1.1 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 Tenable (120240). Entries connected to this vulnerability are available at VDB-118648, VDB-118652, VDB-118657 and VDB-118659. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Web Browser

Vendor

Apple

Name

Safari

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Insufficiently protected credentials
CWE: CWE-522
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 120240
Nessus Name: Fedora 28 : webkit2gtk3 (2018-118b9abf99)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Safari 11.1.1

Timelineinfo

01/02/2018 🔍
06/01/2018 +150 days 🔍
06/01/2018 +0 days 🔍
06/01/2018 +0 days 🔍
06/03/2018 +2 days 🔍
06/08/2018 +5 days 🔍
01/03/2019 +209 days 🔍
03/20/2023 +1537 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208854
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4190 (🔍)
GCVE (CVE): GCVE-0-2018-4190
GCVE (VulDB): GCVE-100-118761
SecurityTracker: 1041029

See also: 🔍

Entryinfo

Created: 06/03/2018 14:51
Updated: 03/20/2023 21:29
Changes: 06/03/2018 14:51 (67), 02/12/2020 19:28 (11), 03/20/2023 21:29 (5)
Complete: 🔍
Cache ID: 216::103

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