cronvel terminal-kit up to 2.1.7 redos

EntryHistoryDiffjsonxmlCTI

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.
4.8	$0-$5k	0.03

Overview

A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7. Affected is an unknown function. The manipulation leads to inefficient regular expression complexity. Using CWE to declare the problem leads to CWE-1333. The weakness was published 01/07/2023 as a2e446cc3927b559d0281683feb9b821e83b758c. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-4306. The attack needs to be initiated within the local network. There are no technical details available. There is no exploit available. 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 T1449.003. It is declared as not defined. As 0-day the estimated underground price was around $0-$5k. Upgrading to version 2.1.8 is able to address this issue. The updated version is ready for download at github.com. The name of the patch is a2e446cc3927b559d0281683feb9b821e83b758c. The bugfix is ready for download at github.com. It is recommended to upgrade the affected component. A possible mitigation has been published before and not just after the disclosure of the vulnerability. [Details]

IOB - Indicator of Behavior (444)

Timeline

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Lang

en	436
es	4
sv	2
it	2

Country

us	56
de	24
gb	20
cn	6
hu	4

Actors

APT28	2
BitRAT	2
Cobalt Strike	1
Mirai	1
Remcos	1

Activities

IOC - Indicator of Compromise (14)

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	23.129.64.0/24	Prophet Spider	predictive	High
2	54.213.123.0/24	Dealply	predictive	High
3	XX.XX.XXX.X/XX	Xxxxxxxx	predictive	High
4	XX.XXX.XXX.X/XX	Xxxxx	predictive	High
5	XX.XX.XXX.X/XX	Xxxxxxx	predictive	High
6	XX.XXX.XX.X/XX	Xxxxx	predictive	High
7	XX.XX.XX.X/XX	Xxxxx	predictive	High
8	XXX.XX.XXX.X/XX	Xxxxxx Xxxxxx	predictive	High
9	XXX.XXX.XXX.X/XX	Xxxxxxx	predictive	High
10	XXX.XXX.XXX.X/XX	Xxxxxx	predictive	High
11	XXX.XXX.XXX.X/XX	Xxxxx	predictive	High
12	XXX.XXX.XXX.X/XX	Xxxxxxxxx	predictive	High
13	XXX.XXX.XXX.X/XX	Xxxx	predictive	High
14	XXX.XX.XXX.X/XX	Xxxxxx	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	Vulnerabilities	Access Vector	Type	Confidence
1	T1449.003	CWE-1333	Inefficient Regular Expression Complexity	predictive	High

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