CVE-2023-42818
JumpServer SSH Private Key Verification Weakness
Description
JumpServer is an open source bastion host. When users enable MFA and use a public key for authentication, the Koko SSH server does not verify the corresponding SSH private key. An attacker could exploit a vulnerability by utilizing a disclosed public key to attempt brute-force authentication against the SSH service This issue has been patched in versions 3.6.5 and 3.5.6. Users are advised to upgrade. There are no known workarounds for this issue.
INFO
Published Date :
Sept. 27, 2023, 9:15 p.m.
Last Modified :
Oct. 2, 2023, 7:59 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-42818.
| URL | Resource |
|---|---|
| https://github.com/jumpserver/jumpserver/security/advisories/GHSA-jv3c-27cv-w8jv | Exploit Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-42818 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-42818 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 02, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/jumpserver/jumpserver/security/advisories/GHSA-jv3c-27cv-w8jv No Types Assigned https://github.com/jumpserver/jumpserver/security/advisories/GHSA-jv3c-27cv-w8jv Exploit, Vendor Advisory Added CWE NIST CWE-307 Added CPE Configuration OR *cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* versions up to (excluding) 3.5.6 *cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* versions from (including) 3.6.0 up to (excluding) 3.6.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-42818 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-42818
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.23 }} 0.04%
score
0.61504
percentile