CVE-2023-42820

Random seed leakage in Jumpserver

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.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 55.84% Top 5%
Vendor Advisory github.com
Affected: jumpserver jumpserver
Published at:
Updated at:

References

Link Tags
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-7prv-g565-82qp vendor advisory
https://github.com/jumpserver/jumpserver/commit/42337f0d00b2a8d45ef063eb5b7deeef81597da5 patch

Frequently Asked Questions

What is the severity of CVE-2023-42820?
CVE-2023-42820 has been scored as a high severity vulnerability.
How to fix CVE-2023-42820?
To fix CVE-2023-42820, 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-2023-42820 being actively exploited in the wild?
It is possible that CVE-2023-42820 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~56% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-42820?
CVE-2023-42820 affects jumpserver jumpserver.
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