Description

Within the source code there is evidence of the use of dangerous regular expressions, because they make use of complex operations to find matches, which can lead an attacker to send a specific string of data that could cause the server to crash when evaluating the string with the dangerous regular expression.

Impact

Generate server crash.

Recommendation

Securely configure the vulnerable service so, it can only be accessed by authorized users.

Threat

Anonymous attacker from the Internet.

Expected Remediation Time

⌚ 60 minutes.

Score

Default score using CVSS 3.1. It may change depending on the context of the src.

Base

• Attack vector: N
• Attack complexity: L
• Privileges required: N
• User interaction: N
• Scope: U
• Confidentiality: N
• Integrity: L
• Availability: H

Temporal

• Exploit code maturity: P
• Remediation level: X
• Report confidence: R

Result

• Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:P/RL:X/RC:R
• Score:
• Base: 8.2
• Temporal: 7.4
• Severity:
• Base: High
• Temporal: High

Score 4.0

Default score using CVSS 4.0. It may change depending on the context of the src.

Base 4.0

• Attack vector: N
• Attack complexity: L
• Attack Requirements: N
• Privileges required: N
• User interaction: N
• Confidentiality (VC): N
• Integrity (VI): L
• Availability (VA): H
• Confidentiality (SC): N
• Integrity (SI): N
• Availability (SA): N

Threat 4.0

• Exploit maturity: P

Result 4.0

• Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:P
• Score:
• CVSS-BT: 7.8
• Severity:
• CVSS-BT: High

Requirements

• 173.Discard unsafe inputs
• 320.Avoid client-side control enforcement
• 342.Validate request parameters

Fixes

• Java
• Elixir
• C-Sharp
• Go
• Ruby
• Dart
• PHP
• Scala
• Python
• TypeScript

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