What is CVE-2023-42820?

CVE-2023-42820 is a high-severity vulnerability in Jumpserver, classified under Information Disclosure. CVSS score: 7.0/10. Published 2023-09-26.

How severe is CVE-2023-42820?

High severity. CVSS v3 base score is 7.0 out of 10.

Is CVE-2023-42820 known to be exploited?

25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Jumpserver

CVE-2023-42820

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…

Vulnerability class: Information Disclosure

EPSS: 0.628 (98.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L.

Affected products

Jumpserver — versions >= 2.24, < 2.28.19, >= 3.0.0, < 3.6.5

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

https://github.com/jumpserver/jumpserver/security/advisories/GHSA-7prv-g565-82qp (x_refsource_CONFIRM)
https://github.com/jumpserver/jumpserver/commit/42337f0d00b2a8d45ef063eb5b7deeef81597da5 (x_refsource_MISC)

Frequently asked questions

What is CVE-2023-42820?: CVE-2023-42820 is a high-severity vulnerability in Jumpserver, classified under Information Disclosure. CVSS score: 7.0/10. Published 2023-09-26.
How severe is CVE-2023-42820?: High severity. CVSS v3 base score is 7.0 out of 10.
Is CVE-2023-42820 known to be exploited?: 25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.