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WS-2021-0012

Good to know:

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Date: January 31, 2021

In uap-core before 0.11.0, some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings.

Language: JS

Severity Score

Related Resources (2)

https://github.com/ua-parser/uap-core/commit/dc9925d458214cfe87b93e35346980612f6ae96c
https://www.mend.io/vulnerability-database/WS-2021-0012

Severity Score

Weakness Type (CWE)

Incorrect Regular Expression

CWE-185

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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