VDB-137020 · CVE-2019-5838 · Qualys 371820

Google Chrome up to 74.0.3729.131 Extensions API input validation

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.
5.2$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Chrome. This issue affects some unknown processing of the component Extensions API. Executing a manipulation can lead to input validation. This vulnerability is registered as CVE-2019-5838. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Google Chrome (Web Browser) and classified as critical. This vulnerability affects some unknown functionality of the component Extensions API. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Insufficient policy enforcement in extensions API in Google Chrome prior to 75.0.3770.80 allowed an attacker who convinced a user to install a malicious extension to bypass restrictions on file URIs via a crafted Chrome Extension.

The weakness was published 06/27/2019 (Website). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2019-5838 since 01/09/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/24/2024). It is expected to see the exploit prices for this product increasing in the near future.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371820 (Google Chrome Prior To 75.0.3770.80 Vulnerability).

Upgrading to version 75.0.3770.80 eliminates this vulnerability.

Similar entries are available at VDB-136990, VDB-136991, VDB-136992 and VDB-136993. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Input validation
CWE: CWE-20
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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 75.0.3770.80

Timelineinfo

01/09/2019 🔍
06/27/2019 +169 days 🔍
06/27/2019 +0 days 🔍
06/24/2024 +1824 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: FEDORA-2019-8fb8240d14
Status: Not defined

CVE: CVE-2019-5838 (🔍)
GCVE (CVE): GCVE-0-2019-5838
GCVE (VulDB): GCVE-100-137020
See also: 🔍

Entryinfo

Created: 06/27/2019 22:32
Updated: 06/24/2024 15:08
Changes: 06/27/2019 22:32 (58), 06/28/2020 17:54 (1), 10/09/2023 08:45 (4), 06/24/2024 15:08 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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!