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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fit2Cloud | Jumpserver | >= 2.0.0, < 2.28.20 |
Related Weaknesses (CWE)
References
- https://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvwExploitVendor Advisory
- https://www.sonarsource.com/blog/diving-into-jumpserver-attackers-gateway-to-intExploitThird Party Advisory
- https://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvwExploitVendor Advisory
FAQ
What is CVE-2023-43650?
CVE-2023-43650 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 a...
How severe is CVE-2023-43650?
CVE-2023-43650 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-43650?
Check the references section above for vendor advisories and patch information. Affected products include: Fit2Cloud Jumpserver.