CVE-2023-42820

HIGH

Fit2cloud Jumpserver < 2.28.19 - Information Disclosure

Title source: rule
STIX 2.1

Description

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.

Exploits (2)

nomisec WORKING POC 55 stars
by C1ph3rX13 · poc
https://github.com/C1ph3rX13/CVE-2023-42820
nomisec SUSPICIOUS 2 stars
by Startr4ck · poc
https://github.com/Startr4ck/cve-2023-42820

References (2)

Core 2

Scores

CVSS v3 7.0
EPSS 0.6279
EPSS Percentile 98.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
fit2cloud/jumpserver 2.24.0 - 2.28.19
Published Sep 27, 2023
Tracked Since Feb 18, 2026