LinkedIn dustjs up to 2.x prototype pollution

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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.
5.7	$0-$5k	0.00

Overview

A vulnerability was found in LinkedIn dustjs up to 2.x and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). Using CWE to declare the problem leads to CWE-1321. The weakness was shared 12/21/2022 as ddb6523832465d38c9d80189e9de60519ac307c3. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-4264. The attack may be launched remotely. There are no technical details available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The current price for an exploit might be approx. USD $0-$5k at the moment. The MITRE ATT&CK project declares the attack technique as T1059. It is declared as Proof-of-Concept. The exploit is available at github.com. As 0-day the estimated underground price was around $0-$5k. Upgrading to version 3.0.0 is able to address this issue. The updated version is ready for download at github.com. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. The bugfix is ready for download at github.com. It is recommended to upgrade the affected component. [Details]

IOB - Indicator of Behavior (301)

Timeline

The data in this chart does not reflect real data. It is dummy data, distorted and not usable in any way. You need an additional purchase to unlock this view to get access to more details of real data.

Language

en	222
ar	14
it	12
de	10
es	8

Country

GB: Great Britain	62
US: USA	60
DE: Germany	12
IT: Italy	10
AR: Argentina	8

Actors

Cobalt Strike	1
Mirai	1
Sliver	1
RedLine Stealer	1
DCRat	1

Activities

IOC - Indicator of Compromise (11)

These indicators of compromise highlight associated network ranges which are known to be part of research and attack activities.

ID	IP range	Actor	Type	Confidence
1	3.77.56.0/24	Sliver	predictive	High
2	3.79.245.0/24	DCRat	predictive	High
3	XX.XXX.XX.X/XX	Xxxxxxx Xxxxxxx	predictive	High
4	XX.XXX.X.X/XX	Xxxxxx Xxxxxx	predictive	High
5	XX.XX.XXX.X/XX	Xxxxxx Xxxxxxx	predictive	High
6	XX.XX.XXX.X/XX	Xxxxxx	predictive	High
7	XX.XXX.XXX.X/XX	Xxxxxx	predictive	High
8	XX.XX.XXX.X/XX	Xxxxxx	predictive	High
9	XX.XX.XXX.X/XX	Xxxxxxxx	predictive	High
10	XXX.XX.XX.X/XX	Xxxxx	predictive	High
11	XXX.XXX.XXX.X/XX	Xxxx	predictive	High

TTP - Tactics, Techniques, Procedures (1)

Tactics, techniques, and procedures summarize the suspected MITRE ATT&CK techniques used. This data is unique as it uses our predictive model for actor profiling.

ID	Technique	Class	Vulnerabilities	Access Vector	Type	Confidence
1	T1059	CAPEC-1	CWE-1321	Argument Injection	verified	High

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