Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-43650— Non-MFA account takeover via brute-force attack on weak password reset code in jumpserver

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，该漏洞源于重置用户密码的验证码由于没有速率限制，容易受到暴力破解。

CVSS 8.2 · High EPSS 0.60% · P47

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-43650

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Non-MFA account takeover via brute-force attack on weak password reset code in jumpserver
Source: CVE Program / CVE List V5
Vulnerability Description
JumpServer is an open source bastion host. The verification code for resetting user's password is vulnerable to brute-force attacks due to the absence of rate limiting. JumpServer provides a feature allowing users to reset forgotten passwords. Affected users are sent a 6-digit verification code, ranging from 000000 to 999999, to facilitate the password reset. Although the code is only available in 1 minute, this window potentially allows for up to 1,000,000 validation attempts. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
忘记口令恢复机制弱
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，该漏洞源于重置用户密码的验证码由于没有速率限制，容易受到暴力破解。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jumpserver jumpserver >= 2.0.0, < 2.28.20 -

II. Public POCs for CVE-2023-43650

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7459 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2023-43650

请登录查看更多情报信息。

Vendor Advisories for CVE-2023-43650 (1)

Security Blog Posts for CVE-2023-43650 (1)

Same Patch Batch · jumpserver · 2023-09-27 · 4 CVEs total

CVE-2023-43651 8.6 HIGH Remote code execution on the host system via MongoDB shell in jumpserver
CVE-2023-43652 8.2 HIGH Non-MFA account takeover via using only SSH public key to login in jumpserver
CVE-2023-42818 5.4 MEDIUM SSH public key login without private key challenge if mfa is enabled in jumpserver

IV. Related Vulnerabilities

Same product: jumpserver
Same vendor: jumpserver
Same weakness: CWE-640

V. Comments for CVE-2023-43650

No comments yet

Leave a comment