CVE-2023-43650 (GCVE-0-2023-43650)
Vulnerability from cvelistv5 – Published: 2023-09-27 18:33 – Updated: 2025-03-25 19:24
VLAI
EPSS
VEX
Title
Non-MFA account takeover via brute-force attack on weak password reset code in jumpserver
Summary
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.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-23 18:52 UTC
CWE
- CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jumpserver/jumpserver/security… | x_refsource_CONFIRM |
| https://www.sonarsource.com/blog/diving-into-jump… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| jumpserver | jumpserver |
Affected:
>= 2.0.0, < 2.28.20
Affected: >= 3.0.0, < 3.7.1 |
guessed | |
| jumpserver | jumpserver |
Affected:
2.0.0 , < 2.28.20
(custom)
Affected: 3.0.0 , < 3.7.1 (custom) cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:* |
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