VDB-217451 · CVE-2017-20162 · ID 89

vercel ms up to 1.x index.js parse str redos

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.
4.5	$0-$5k	0.08

Overview

A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The CWE definition for the vulnerability is CWE-1333. The weakness was released 01/05/2023 as 89. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2017-20162. The attack may be initiated remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The pricing for an exploit might be around USD $0-$5k at the moment. The attack technique deployed by this issue is T1449.003 according to MITRE ATT&CK. It is declared as proof-of-concept. The exploit is available at github.com. We expect the 0-day to have been worth approximately $0-$5k. Upgrading to version 2.0.0 is able to address this issue. The updated version is ready for download at github.com. The patch is named caae2988ba2a37765d055c4eee63d383320ee662. The bugfix is ready for download at github.com. It is recommended to upgrade the affected component. [Details]

IOB - Indicator of Behavior (238)

Timeline

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Lang

en	180
ar	10
ru	8
es	8
pt	8

Country

GB: Great Britain	76
US: USA	32
RU: Russia	10
AR: Argentina	8
BR: Brazil	8

Actors

Cobalt Strike	3
Mirai	1
Ficker Stealer	1
Carbanak	1
Naikon	1

Activities

IOC - Indicator of Compromise (9)

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	18.191.5.0/24	Cobalt Strike	predictive	High
2	XX.XX.XXX.X/XX	Xxxxxx Xxxxxxx	predictive	High
3	XX.XX.XXX.X/XX	Xxxxxx	predictive	High
4	XX.XX.XXX.X/XX	Xxxx	predictive	High
5	XX.XXX.XXX.X/XX	Xxxxxx Xxxxxx	predictive	High
6	XX.XXX.X.X/XX	Xxxxxx Xxxxxx	predictive	High
7	XX.XX.XXX.X/XX	Xxxxxxxx	predictive	High
8	XXX.XX.XX.X/XX	Xxxxx	predictive	High
9	XXX.XXX.XX.X/XX	Xxxxxxxxxx	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	T1449.003	CAPEC-492	CWE-1333	Inefficient Regular Expression Complexity	verified	High

IOA - Indicator of Attack (2)

These indicators of attack list the potential fragments used for technical activities like reconnaissance, exploitation, privilege escalation, and exfiltration. This data is unique as it uses our predictive model for actor profiling.

ID	Class	Indicator	Type	Confidence
1	File	index.js	verified	Medium
2	Argument	xxx	verified	Low

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