CVE-2002-1374
HighSummary
The COM_CHANGE_USER command in MySQL versions 3.x before 3.23.54 and 4.x before 4.0.6 allows remote attackers to gain privileges via a brute force attack using a one-character password, causing MySQL to only compare the provided password against the first character of the real password.
Risk Assessment
Attackers may gain unauthorized access to the system, potentially leading to serious data security breaches and control over the database.
Recommendation
It is recommended to upgrade MySQL to version 3.23.54 or 4.0.6 and later to mitigate this vulnerability. Additionally, implementing stronger password policies is advisable.
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Original NVD description (English source)
The COM_CHANGE_USER command in MySQL 3.x before 3.23.54, and 4.x before 4.0.6, allows remote attackers to gain privileges via a brute force attack using a one-character password, which causes MySQL to only compare the provided password against the first character of the real password.

