Skip to main content

Insecure service configuration - BREACH Attack

Description

The site meets the conditions that make it potentially vulnerable to BREACH attacks:

  • Uses HTTP gzip compression.
  • The information entered by the user is reflected on the site.
  • It stores secrets (session tokens or anti-CSRF).

Impact

Allow to obtain privileged information (such as session token) due to the compression features with the gzip format. Additional information can be found at http://breachattack.com/

Recommendation

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

Threat

Anonymous attacker in adjacent network executing a man-in-the-middle attack.

Expected Remediation Time

⌚ 30 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: N
  • User interaction: R
  • Scope: U
  • Confidentiality: L
  • Integrity: N
  • Availability: N

Temporal

  • Exploit code madurity: U
  • Remediation level: W
  • Report confidence: R

Result

  • Vector string: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:W/RC:R
  • Score:
    • Base: 2.6
    • Temporal: 2.3
  • 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: N
  • User interaction: P
  • Confidentiality (VC): L
  • Integrity (VI): N
  • Availability (VA): N
  • Confidentiality (SC): N
  • Integrity (SI): N
  • Availability (SA): N

Threat 4.0

  • Exploit madurity: U

Result 4.0

  • Vector string: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
  • Score:
    • CVSS-BT: 0.5
  • Severity:
    • CVSS-BT: Low

Requirements

Fixes

free trial

Search for vulnerabilities in your apps for free with Fluid Attacks' automated security testing! Start your 21-day free trial and discover the benefits of the Continuous Hacking Essential plan. If you prefer the Advanced plan, which includes the expertise of Fluid Attacks' hacking team, fill out this contact form.