Google Chrome up to 56 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Google Chrome up to 56. Affected by this issue is some unknown functionality. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2017-5020. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome up to 56 (Web Browser). Affected by this issue is an unknown function. 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 confidentiality, integrity, and availability. CVE summarizes:

Google Chrome prior to 56.0.2924.76 for Linux, Windows and Mac, and 56.0.2924.87 for Android, failed to require a user gesture for powerful download operations, which allowed a remote attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted HTML page.

The bug was discovered 01/25/2017. The weakness was released 02/17/2017 by Armin Razmdjou (Paul) with Tresorit (Website). The advisory is shared for download at chromereleases.googleblog.com. This vulnerability is handled as CVE-2017-5020 since 01/02/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 96826 (RHEL 6 : chromium-browser (RHSA-2017:0206)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236251 (Red Hat Update forchromium-browser Security (RHSA-2017:0206)).

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 (96826) and SecurityFocus (BID 95792†). Entries connected to this vulnerability are available at VDB-96042, VDB-96043, VDB-96044 and VDB-96045. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

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: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
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

Class: Cross site scripting
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: 96826
Nessus Name: RHEL 6 : chromium-browser (RHSA-2017:0206)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703776
OpenVAS Name: Debian Security Advisory DSA 3776-1 (chromium-browser - security update)
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 🔍
01/26/2017 +1 days 🔍
01/27/2017 +1 days 🔍
02/17/2017 +21 days 🔍
02/17/2017 +0 days 🔍
02/17/2017 +0 days 🔍
08/15/2020 +1275 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

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

CVE: CVE-2017-5020 (🔍)
GCVE (CVE): GCVE-0-2017-5020
GCVE (VulDB): GCVE-100-97076

OVAL: 🔍

SecurityFocus: 95792 - Google Chrome Multiple Security Vulnerabilities
OSVDB: - CVE-2017-5020 - Google - Chrome - Universal Cross-Site Scripting Issue

See also: 🔍

Entryinfo

Created: 02/17/2017 16:11
Updated: 08/15/2020 16:23
Changes: 02/17/2017 16:11 (78), 08/15/2020 16:23 (6)
Complete: 🔍
Cache ID: 216:217:103

Once again VulDB remains the best source for vulnerability data.

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