CVE-2023-42442

Public Exploit
JumpServer session replays download without authentication

Description

JumpServer is an open source bastion host and a professional operation and maintenance security audit system. Starting in version 3.0.0 and prior to versions 3.5.5 and 3.6.4, session replays can download without authentication. Session replays stored in S3, OSS, or other cloud storage are not affected. The api `/api/v1/terminal/sessions/` permission control is broken and can be accessed anonymously. SessionViewSet permission classes set to `[RBACPermission | IsSessionAssignee]`, relation is or, so any permission matched will be allowed. Versions 3.5.5 and 3.6.4 have a fix. After upgrading, visit the api `$HOST/api/v1/terminal/sessions/?limit=1`. The expected http response code is 401 (`not_authenticated`).

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 82.34% Top 5%
Vendor Advisory github.com
Affected: jumpserver jumpserver
Published at:
Updated at:

References

Link Tags
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-633x-3f4f-v9rw exploit vendor advisory
https://github.com/jumpserver/jumpserver/commit/0a58bba59cd275bab8e0ae58bf4b359fbc5eb74a patch
https://github.com/jumpserver/jumpserver/blob/v3.6.1/apps/terminal/api/session/session.py#L91 product

Frequently Asked Questions

What is the severity of CVE-2023-42442?
CVE-2023-42442 has been scored as a high severity vulnerability.
How to fix CVE-2023-42442?
To fix CVE-2023-42442, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-42442 being actively exploited in the wild?
It is possible that CVE-2023-42442 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~82% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-42442?
CVE-2023-42442 affects jumpserver jumpserver.
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