VDB-121117 · CVE-2018-8319 · BID 104655

Microsoft Research JavaScript Cryptography Library Security Feature calculation

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.
8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Research JavaScript Cryptography Library and classified as critical. The impacted element is an unknown function of the component Security Feature. This manipulation causes calculation. This vulnerability is tracked as CVE-2018-8319. The attack is possible to be carried out remotely. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Research JavaScript Cryptography Library (Software Library) (the affected version unknown) and classified as critical. Affected by this vulnerability is an unknown part of the component Security Feature. The manipulation with an unknown input leads to a calculation vulnerability. The CWE definition for the vulnerability is CWE-682. The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 07/10/2018. The weakness was disclosed 07/10/2018 by ryan as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is known as CVE-2018-8319 since 03/14/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The advisory points out:

A Security Feature Bypass vulnerability exists in MSR JavaScript Cryptography Library that is caused by incorrect arithmetic computations.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104655†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Calculation
CWE: CWE-682
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/14/2018 🔍
07/10/2018 +117 days 🔍
07/10/2018 +0 days 🔍
07/10/2018 +0 days 🔍
07/10/2018 +0 days 🔍
07/10/2018 +0 days 🔍
07/11/2018 +1 days 🔍
04/06/2023 +1730 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: ryan
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8319 (🔍)
GCVE (CVE): GCVE-0-2018-8319
GCVE (VulDB): GCVE-100-121117
SecurityFocus: 104655 - Microsoft MSR JavaScript Cryptography Library CVE-2018-8319 Remote Security Bypass Vulnerability
SecurityTracker: 1041268

Entryinfo

Created: 07/11/2018 10:44
Updated: 04/06/2023 06:22
Changes: 07/11/2018 10:44 (62), 03/01/2020 15:59 (6), 04/06/2023 06:22 (5)
Complete: 🔍
Cache ID: 216::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 ▸

Want to know what is going to be exploited?

We predict KEV entries!