CVE-2024-24767Public exploitNetwork attack vector

Server takeover via unrestricted password guessing

Published Mar 6, 2024 · Updated Aug 28, 2024

Improper login-attempt restriction in CasaOS-UserService before 0.4.7 allows remote attackers to obtain server superuser access. The PostUserLogin handler accepts unlimited password guesses because it performs no rate-limit check before validating submitted credentials. The login endpoint requires no authentication; a correctly guessed password grants full server access, while failed guesses alone do not alter data.

CVSS severity9.8
Critical
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Improper login-attempt restriction in CasaOS-UserService before 0.4.7 allows remote attackers to obtain server superuser access. The PostUserLogin handler accepts unlimited password guesses because it performs no rate-limit check before validating submitted credentials. The login endpoint requires no authentication; a correctly guessed password grants full server access, while failed guesses alone do not alter data.

The record

CVE
CVE-2024-24767
Published
Mar 6, 2024
Updated
Aug 28, 2024
Vendor
IceWhale Technology Limited
Product
CasaOS-UserService
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.4.4.3, < 0.4.7
  2. Affected versionversion=0.4.4.3 <0.4.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IceWhale Technology Limited · CasaOS-UserServiceversion=>= 0.4.4.3, < 0.4.7; version=0.4.4.3 <0.4.7

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3GitHub AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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