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CVE-2023-42442— JumpServer session replays download without authentication

Quick assessment

Affected
jumpserver jumpserver
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Jumpserver是中国杭州飞致云信息科技有限公司的一款开源堡垒机。 JumpServer 存在授权问题漏洞，该漏洞源于无需身份验证即可下载会话重播。

CVSS 8.2 · High EPSS 58.54% · P99

Public Exploits 1

Nuclei · 1 CVE-2023-42442.yaml [template]

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2023-42442

Vulnerability Information
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Vulnerability Title
JumpServer session replays download without authentication
Source: CVE Program / CVE List V5
Vulnerability 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`).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Jumpserver 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jumpserver是中国杭州飞致云信息科技有限公司的一款开源堡垒机。 JumpServer 存在授权问题漏洞，该漏洞源于无需身份验证即可下载会话重播。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
jumpserver jumpserver >= 3.0.0, < 3.5.5 -

II. Public POCs for CVE-2023-42442

# POC Description Source Link Shenlong Link
1 None https://github.com/HolyGu/CVE-2023-42442 POC Details
2 JumpServer 堡垒机未授权综合漏洞利用, CVE-2023-42442 / CVE-2023-42820 Exploit https://github.com/tarimoe/blackjump POC Details
3 CVE-2023-42442 https://github.com/C1ph3rX13/CVE-2023-42442 POC Details
4 JumpServer 堡垒机未授权综合漏洞利用, Exploit for CVE-2023-42442 / CVE-2023-42820 / RCE 2021 https://github.com/tarihub/blackjump POC Details
5 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`). https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-42442.yaml POC Details
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III. Intelligence Information for CVE-2023-42442

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Patches & Fixes for CVE-2023-42442 (1)

Vendor Advisories for CVE-2023-42442 (1)

Other References for CVE-2023-42442 (1)

IV. Related Vulnerabilities

Same product: jumpserver
Same vendor: jumpserver
Same weakness: CWE-287

V. Comments for CVE-2023-42442

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