Microsoft SQL Server 6.5 Password missing encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Microsoft SQL Server 6.5. Impacted is an unknown function of the component Password Handler. Such manipulation leads to missing encryption. This vulnerability is uniquely identified as CVE-1999-1556. No exploit exists. This vulnerability has historical importance owing to its background and reception. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft SQL Server 6.5 (Database Software) and classified as critical. Affected by this issue is an unknown functionality of the component Password Handler. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Microsoft SQL Server 6.5 uses weak encryption for the password for the SQLExecutiveCmdExec account and stores it in an accessible portion of the registry, which could allow local users to gain privileges by reading and decrypting the CmdExecAccount value.

The bug was discovered 06/29/1998. The weakness was disclosed 06/29/1998 by Todd Sabin with BindView as not defined mailinglist post (NTBugTraq). The advisory is available at marc.theaimsgroup.com. This vulnerability is handled as CVE-1999-1556. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/17/2026). This vulnerability is assigned to T1600 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7354), SecurityFocus (BID 109†), OSVDB (10156†) and Vulnerability Center (SBV-7716†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
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: Missing encryption
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

06/29/1998 🔍
06/29/1998 +0 days 🔍
06/29/1998 +0 days 🔍
06/29/1998 +0 days 🔍
06/29/1998 +0 days 🔍
04/28/2005 +2495 days 🔍
06/19/2014 +3339 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: marc.theaimsgroup.com
Researcher: Todd Sabin
Organization: BindView
Status: Confirmed

CVE: CVE-1999-1556 (🔍)
GCVE (CVE): GCVE-0-1999-1556
GCVE (VulDB): GCVE-100-14162
X-Force: 7354 - Microsoft SQL Server 6.5 stores the SQLExecutiveCmdExec in registry using weak encryption algorithm
SecurityFocus: 109 - NT SQL Server Password Vulnerability
OSVDB: 10156 - CVE-1999-1556 - Microsoft - SQL Server - Weak Encryption Issue
Vulnerability Center: 7716 - Weak Encryption in Microsoft SQL Server 6.5 via SQLExecutiveCmdExec Account, Low

Entryinfo

Created: 06/19/2014 16:03
Updated: 04/17/2026 14:02
Changes: 06/19/2014 16:03 (66), 05/31/2019 21:03 (3), 04/17/2026 14:02 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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