VDB-90242 · CVE-2016-5134 · BID 92053

Google Chrome up to 52.0.2743 PAC Script URL information disclosure

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.
8.6$0-$5k0.00

A vulnerability was found in Google Chrome up to 52.0.2743 (Web Browser). It has been rated as critical. Affected by this issue is an unknown code block of the component PAC Script. The manipulation with an unknown input leads to a information disclosure vulnerability (URL). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 07/20/2016 by Paul Stone (Cloudfuzzer) with Context Information Security as Stable Channel Update, July 2016 as confirmed release notes (Website). The advisory is available at googlechromereleases.blogspot.com. This vulnerability is handled as CVE-2016-5134 since 05/31/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/09/2022). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 92666 (Debian DSA-3637-1 : chromium-browser - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370091 (Google Chrome Prior to 52.0.2743.82 Multiple Vulnerabilities).

Upgrading to version 52.0.2743.82 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. The release notes contains the following remark:

This update includes 48 security fixes.

The vulnerability is also documented in the vulnerability database at Tenable (92666).

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: URL
Class: Information disclosure / URL
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92666
Nessus Name: Debian DSA-3637-1 : chromium-browser - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 855646
OpenVAS Name: SuSE Update for Chromium openSUSE-SU-2016:1869-1 (Chromium)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Chrome 52.0.2743.82

Timelineinfo

05/31/2016 🔍
07/20/2016 +50 days 🔍
07/20/2016 +0 days 🔍
07/20/2016 +0 days 🔍
07/23/2016 +3 days 🔍
07/23/2016 +0 days 🔍
08/02/2016 +10 days 🔍
09/09/2022 +2229 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Stable Channel Update, July 2016
Researcher: Paul Stone (Cloudfuzzer)
Organization: Context Information Security
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5134 (🔍)
OVAL: 🔍

SecurityTracker: 1036428
SecurityFocus: 92053 - Google Chrome Prior to 52.0.2743.82 Multiple Security Vulnerabilities

Entryinfo

Created: 07/23/2016 12:08
Updated: 09/09/2022 10:20
Changes: 07/23/2016 12:08 (76), 03/07/2019 15:51 (13), 09/09/2022 10:20 (4)
Complete: 🔍
Cache ID: 3:D07:103

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