VDB-170177 · CVE-2021-27405 · GCVE-0-2021-27405

progfay scrapbox-parser up to 6.0.2 on Node.js Regular Expression denial of service

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in progfay scrapbox-parser up to 6.0.2 on Node.js. It has been rated as problematic. The impacted element is an unknown function of the component Regular Expression Handler. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2021-27405. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in progfay scrapbox-parser up to 6.0.2 on Node.js (JavaScript Library) and classified as problematic. This issue affects an unknown function of the component Regular Expression Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 02/19/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-27405. Neither technical details nor an exploit are publicly available.

Upgrading to version 6.0.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

JavaScript Library

Vendor

progfay

Name

scrapbox-parser

Version

Website

Product: https://github.com/progfay/scrapbox-parser/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: scrapbox-parser 6.0.3
Patch: github.com

Timelineinfo

02/19/2021 🔍
02/19/2021 +0 days 🔍
02/19/2021 +0 days 🔍
03/03/2021 +12 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-27405 (🔍)
GCVE (CVE): GCVE-0-2021-27405
GCVE (VulDB): GCVE-100-170177

Entryinfo

Created: 02/19/2021 08:13
Updated: 03/03/2021 17:26
Changes: 02/19/2021 08:13 (41), 03/03/2021 17:20 (5), 03/03/2021 17:26 (18)
Complete: 🔍
Cache ID: 216::103