VDB-97307 · CVE-2017-5928 · BID 97036

W3C High Resolution Time API Javascript 7pk time and state

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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in W3C High Resolution Time API. It has been rated as critical. Affected by this issue is some unknown functionality of the component Javascript Handler. The manipulation leads to 7pk time and state. This vulnerability is uniquely identified as CVE-2017-5928. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in W3C High Resolution Time API (Automation Software) (version unknown). It has been rated as critical. This issue affects an unknown function of the component Javascript Handler. The manipulation with an unknown input leads to a 7pk time and state vulnerability. Using CWE to declare the problem leads to CWE-361. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now "Time to Tick" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.

The bug was discovered 02/27/2017. The weakness was disclosed 02/27/2017 (Website). It is possible to read the advisory at cs.vu.nl. The identification of this vulnerability is CVE-2017-5928 since 02/07/2017. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97036†). The entries VDB-97304, VDB-97305 and VDB-97306 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Automation Software

Vendor

Name

High Resolution Time API

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk time and state
CWE: CWE-361
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/07/2017 🔍
02/27/2017 +20 days 🔍
02/27/2017 +0 days 🔍
02/27/2017 +0 days 🔍
02/27/2017 +0 days 🔍
02/27/2017 +0 days 🔍
09/02/2020 +1283 days 🔍

Sourcesinfo

Advisory: cs.vu.nl
Status: Not defined

CVE: CVE-2017-5928 (🔍)
GCVE (CVE): GCVE-0-2017-5928
GCVE (VulDB): GCVE-100-97307
SecurityFocus: 97036 - W3C High Resolution Time API CVE-2017-5928 Security Vulnerability
OSVDB: - CVE-2017-5928 - W3C High Resolution Time API - AnC Attack Issue

See also: 🔍

Entryinfo

Created: 02/27/2017 21:06
Updated: 09/02/2020 15:02
Changes: 02/27/2017 21:06 (59), 09/02/2020 15:02 (4)
Complete: 🔍
Cache ID: 216:1F4:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.