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Time-based SQL Injection

Description​

In a time-based attack, someone could inject a SQL command to the server with code to force a delay in the execution of the queries or with a heavy query that generates this time delay. Depending on the time response, it is possible to deduct some information and determine if a vulnerability is present to exploit it.

Impact​

  • Allow an attacker to interfere with the queries that an application makes to its database.
  • Retrieve information from the database an even extract data.
  • Affect the authentication and authorization aspects of the application.
  • Steal sensitive information stored in databases.

Recommendation​

  • Use of prepared statements (with parameterized queries).
  • Use of stored procedures.
  • Enforcing the least privilege.

Threat​

Anonymous attacker from an intranet.

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: L
  • Integrity: L
  • Availability: L

Temporal​

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

Result​

  • Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X
  • Score:
    • Base: 7.3
    • Temporal: 7.3
  • 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): L
  • Integrity (VI): L
  • Availability (VA): L
  • Confidentiality (SC): N
  • Integrity (SI): N
  • Availability (SA): N

Threat 4.0​

  • Exploit maturity: X

Result 4.0​

  • Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
  • Score:
    • CVSS-BT: 6.9
  • Severity:
    • CVSS-BT: Medium

Requirements​

Fixes​

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