Google Chrome up to 56 Blink access control

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.
5.7$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Google Chrome up to 56. This affects an unknown part of the component Blink. Performing a manipulation results in access control. This vulnerability is reported as CVE-2017-5027. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Chrome up to 56 (Web Browser). This affects an unknown functionality of the component Blink. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Blink in Google Chrome prior to 56.0.2924.76 for Linux, Windows and Mac, and 56.0.2924.87 for Android, failed to properly enforce unsafe-inline content security policy, which allowed a remote attacker to bypass content security policy via a crafted HTML page.

The bug was discovered 01/25/2017. The weakness was disclosed 02/17/2017 by Armin Razmdjou (Paul) with Tresorit (Website). The advisory is shared at chromereleases.googleblog.com. This vulnerability is uniquely identified as CVE-2017-5027 since 01/02/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/28/2024). It is expected to see the exploit prices for this product increasing in the near future.MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 96829 (Google Chrome < 56.0.2924.76 Multiple Vulnerabilities (macOS)), 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 276746 (Fedora Security Update for qt5-qtwebengine (FEDORA-2017-58cde32413)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96829) and SecurityFocus (BID 95792†). The entries VDB-96042, VDB-96043, VDB-96044 and VDB-96045 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Access control
CWE: 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: 96829
Nessus Name: Google Chrome < 56.0.2924.76 Multiple Vulnerabilities (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qt5-qtwebengine FEDORA-2017-98bed96d12
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/02/2017 🔍
01/25/2017 +23 days 🔍
01/25/2017 +0 days 🔍
01/25/2017 +0 days 🔍
01/27/2017 +2 days 🔍
02/17/2017 +21 days 🔍
02/17/2017 +0 days 🔍
02/17/2017 +0 days 🔍
08/28/2024 +2749 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Researcher: Armin Razmdjou (Paul)
Organization: Tresorit
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5027 (🔍)
GCVE (CVE): GCVE-0-2017-5027
GCVE (VulDB): GCVE-100-97077

OVAL: 🔍

SecurityFocus: 95792 - Google Chrome Multiple Security Vulnerabilities
OSVDB: - CVE-2017-5027 - Google - Chrome - Security Bypass Issue

See also: 🔍

Entryinfo

Created: 02/17/2017 16:12
Updated: 08/28/2024 02:00
Changes: 02/17/2017 16:12 (78), 08/15/2020 16:26 (5), 08/28/2024 02:00 (18)
Complete: 🔍
Cache ID: 216:03B:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!