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Uncontrolled external site redirect - Host Header Injection

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 madurity: 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 madurity: 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

Fixes

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