CVE-2024-24553

Password recovery via fast SHA-1 hashing

Published Jun 24, 2024 · Updated Aug 1, 2024

Weak password hashing in Bludit 2.0 through 3.15.0 allows attackers with stored hashes to recover cleartext passwords offline. The generatePasswordHash method in bl-kernel/users.class.php applies one fast SHA-1 pass to the password and an eight-character salt produced by rand. Exploitation requires access to stored password hashes; successful cracking exposes credentials for accounts whose passwords are recovered.

CVSS severity5.9
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password hashing in Bludit 2.0 through 3.15.0 allows attackers with stored hashes to recover cleartext passwords offline. The generatePasswordHash method in bl-kernel/users.class.php applies one fast SHA-1 pass to the password and an eight-character salt produced by rand. Exploitation requires access to stored password hashes; successful cracking exposes credentials for accounts whose passwords are recovered.

The record

CVE
CVE-2024-24553
Published
Jun 24, 2024
Updated
Aug 1, 2024
Vendor
Bludit
Product
Bludit
Classifications
CWE-916, CAPEC-49, CAPEC-20, CAPEC-16, T1110.002
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=2.0
  2. Affected versionversion=2.0 <=3.15.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Bludit · Bluditversion=2.0; version=2.0 <=3.15.0

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9NCSC.chCVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-916Use of Password Hash With Insufficient Computational Effort
CAPEC-49Password Brute Forcing
CAPEC-20Encryption Brute Forcing
CAPEC-16Dictionary-based Password Attack
T1110.002Brute Force: Password Cracking

Public exploit references

No public exploit references are available in this record.

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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