CVE-2020-11020 Authentication and extension bypass in Faye

2020-04-2917:35:12

CWE-287

GitHub_M

www.cve.org

8.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

9.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

73.4%

JSON

Faye (NPM, RubyGem) versions greater than 0.5.0 and before 1.0.4, 1.1.3 and 1.2.5, has the potential for authentication bypass in the extension system. The vulnerability allows any client to bypass checks put in place by server-side extensions, by appending extra segments to the message channel. It is patched in versions 1.0.4, 1.1.3 and 1.2.5.

CNA Affected

[
  {
    "product": "Faye",
    "vendor": "faye",
    "versions": [
      {
        "status": "affected",
        "version": ">= 0.5.0, < 1.0.4"
      },
      {
        "status": "affected",
        "version": ">= 1.1.0, < 1.1.3"
      },
      {
        "status": "affected",
        "version": ">= 1.2.0, < 1.2.5"
      }
    ]
  }
]