CVE-2020-8902 SSRF in Rendertron

2021-02-2312:00:16

CWE-284

Google

www.cve.org

rendertron

ssrf

vulnerability

upgrade

mitigation

headless chrome

infrastructure

internal domain

CVSS3

3.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

4.5

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

Rendertron versions prior to 3.0.0 are are susceptible to a Server-Side Request Forgery (SSRF) attack. An attacker can use a specially crafted webpage to force a rendertron headless chrome process to render internal sites it has access to, and display it as a screenshot. Suggested mitigations are to upgrade your rendertron to version 3.0.0, or, if you cannot update, to secure the infrastructure to limit the headless chrome’s access to your internal domain.

CNA Affected

[
  {
    "product": "Rendertron",
    "vendor": "Google LLC",
    "versions": [
      {
        "lessThan": "3.0.0",
        "status": "affected",
        "version": "stable",
        "versionType": "custom"
      }
    ]
  }
]