Description

The server processes requests with the Host header set and redirects clients to any destination.

Impact

- Enumerate the internal network via trial and error.
- Perform a subset of Server Side Request Forgery attacks.

Recommendation

Configure server to prevent third party hosts redirection.

Threat

Unauthorized attacker from internet network.

Expected Remediation Time

⌚ 10 minutes.

Score

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

Base

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

Temporal

• Exploit code maturity: X
• Remediation level: U
• Report confidence: C

Result

• Vector string: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:X/RL:U/RC:C
• Score:
• Base: 2.6
• Temporal: 2.6
• Severity:
• Base: Low
• Temporal: Low

Score 4.0

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

Base 4.0

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

Threat 4.0

• Exploit maturity: X

Result 4.0

• Vector string: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
• Score:
• CVSS-BT: 2.1
• Severity:
• CVSS-BT: Low

Requirements

• 173.Discard unsafe inputs
• 324.Control redirects

Fixes

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

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