inikulin replicator up to 1.0.3 fromSerializable deserialization

HistoryDiffrelatejsonxmlCTI

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.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in inikulin replicator up to 1.0.3. Affected by this vulnerability is the function fromSerializable. Such manipulation leads to deserialization. This vulnerability is referenced as CVE-2021-33420. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in inikulin replicator up to 1.0.3. Affected by this issue is the function fromSerializable. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A deserialization issue discovered in inikulin replicator before 1.0.4 allows remote attackers to run arbitrary code via the fromSerializable function in TypedArray object.

The weakness was published 12/16/2022 as 16. The advisory is available at github.com. This vulnerability is handled as CVE-2021-33420 since 05/20/2021. Technical details are known, but there is no available exploit.

Upgrading to version 1.0.4 eliminates this vulnerability. Applying the patch 2c626242fb4a118855262c64b5731b2ce98e521b 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

inikulin

Name

replicator

Version

License

open-source

Website

Product: https://github.com/inikulin/replicator/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / 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-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: replicator 1.0.4
Patch: 2c626242fb4a118855262c64b5731b2ce98e521b

Timelineinfo

05/20/2021 🔍
12/16/2022 +575 days 🔍
12/16/2022 +0 days 🔍
04/22/2025 +857 days 🔍

Sourcesinfo

Product: github.com

Advisory: 16
Status: Confirmed

CVE: CVE-2021-33420 (🔍)
GCVE (CVE): GCVE-0-2021-33420
GCVE (VulDB): GCVE-100-215930

Entryinfo

Created: 12/16/2022 08:29
Updated: 04/22/2025 00:22
Changes: 12/16/2022 08:29 (42), 04/22/2025 00:22 (27)
Complete: 🔍
Cache ID: 216::103