MySQL up to 3.23.53/4.0.5 COM_CHANGE_USER improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in MySQL up to 3.23.53/4.0.5. This affects an unknown part. Executing a manipulation of the argument COM_CHANGE_USER can lead to improper authentication. This vulnerability is tracked as CVE-2002-1374. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in MySQL up to 3.23.53/4.0.5 (Database Software). This vulnerability affects some unknown functionality. The manipulation of the argument COM_CHANGE_USER with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed 12/23/2002 by Stefan Esser (e-matters) (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2002-1374. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 15049 (Debian DSA-212-1 : mysql - multiple problems), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 19067 (MySQL COM_CHANGE_USER Password Length Account Compromise Vulnerability).

Upgrading to version 3.23.54 or 4.0.6 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3525.

The vulnerability is also documented in the databases at X-Force (10847), Exploit-DB (22084), Tenable (15049), SecurityFocus (BID 6373†) and Vulnerability Center (SBV-1861†). The entries VDB-19251, VDB-19253 and VDB-19254 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15049
Nessus Name: Debian DSA-212-1 : mysql - multiple problems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53585
OpenVAS Name: Debian Security Advisory DSA 212-1 (mysql)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MySQL 3.23.54/4.0.6
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

12/12/2002 🔍
12/17/2002 +5 days 🔍
12/23/2002 +6 days 🔍
12/23/2002 +0 days 🔍
12/23/2002 +0 days 🔍
09/01/2003 +252 days 🔍
09/29/2004 +394 days 🔍
07/31/2014 +3592 days 🔍
03/23/2025 +3888 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Stefan Esser (e-matters)
Status: Confirmed

CVE: CVE-2002-1374 (🔍)
GCVE (CVE): GCVE-0-2002-1374
GCVE (VulDB): GCVE-100-19252
X-Force: 10847
SecurityFocus: 6373 - MySQL COM_CHANGE_USER Password Length Account Compromise Vulnerability
Vulnerability Center: 1861 - COM_CHANGE_USER command in MySQL Allows to Gain Privileges Remotely, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/31/2014 21:54
Updated: 03/23/2025 05:28
Changes: 07/31/2014 21:54 (76), 05/12/2019 09:10 (8), 03/23/2025 05:28 (19)
Complete: 🔍
Cache ID: 216::103

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