CVE-2023-42820 Random seed leakage in Jumpserver

2023-09-2620:35:22

CWE-200

GitHub_M

www.cve.org

jumpserver

open source bastion

random number seed

api

verification codes

password resets

mfa

local authentication

upgrade

7 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

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

8.5 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.7%

JSON

JumpServer is an open source bastion host. This vulnerability is due to exposing the random number seed to the API, potentially allowing the randomly generated verification codes to be replayed, which could lead to password resets. If MFA is enabled users are not affect. Users not using local authentication are also not affected. Users are advised to upgrade to either version 2.28.19 or to 3.6.5. There are no known workarounds or this issue.

CNA Affected

[
  {
    "vendor": "jumpserver",
    "product": "jumpserver",
    "versions": [
      {
        "version": ">= 2.24, < 2.28.19",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0, < 3.6.5",
        "status": "affected"
      }
    ]
  }
]