Auth bypass in Fit2cloud Jumpserver
CVE-2023-43652
JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key…
Vulnerability class: Broken Access Control
EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Fit2cloud Jumpserver
- Jumpserver — versions >= 2.0.0, < 2.28.20, >= 3.0.0, < 3.7.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Technical Description, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-43652?
- CVE-2023-43652 is a high-severity vulnerability in Fit2cloud Jumpserver, classified under Missing Authorization. CVSS score: 8.2/10. Published 2023-09-27.
- How severe is CVE-2023-43652?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2023-43652 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.