Microsoft SQL Server 2000 Authentication Hello memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.8 | $0-$5k | 0.00 |
A vulnerability was found in Microsoft SQL Server 2000 (Database Software). It has been rated as critical. Affected by this issue is an unknown code block of the component Authentication. The manipulation of the argument Hello
with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the "Hello" overflow.
The weakness was published 09/24/2002 by Dave Aitel with Immunity as not defined posting (Bugtraq). The advisory is shared for download at online.securityfocus.com. This vulnerability is handled as CVE-2002-1123. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.
The exploit is available at securityfocus.com. It is declared as highly functional. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 11067 (Microsoft SQL Server Authentication Function Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Databases and running in the context r.
Applying a patch is able to eliminate this problem. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1396.
The vulnerability is also documented in the databases at X-Force (9788) and Tenable (11067). Similar entry is available at 19515.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.3
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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VulDB Reliability: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 11067
Nessus Name: Microsoft SQL Server Authentication Function Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 11067
OpenVAS Name: Microsofts SQL Hello Overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍
Saint ID: exploit_info/ms_sql_server_hello
Saint Name: Microsoft SQL Server Hello buffer overflow
MetaSploit ID: ms02_056_hello.rb
MetaSploit Name: MS02-056 Microsoft SQL Server Hello Overflow
MetaSploit File: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Suricata ID: 2002845
Suricata Class: 🔍
Suricata Message: 🔍
TippingPoint: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Timeline
08/06/2002 🔍08/07/2002 🔍
09/24/2002 🔍
09/24/2002 🔍
09/24/2002 🔍
02/09/2003 🔍
07/23/2014 🔍
05/09/2019 🔍
Sources
Vendor: microsoft.comAdvisory: online.securityfocus.com⛔
Researcher: Dave Aitel
Organization: Immunity
Status: Not defined
CVE: CVE-2002-1123 (🔍)
X-Force: 9788 - Microsoft SQL Server pre-authentication buffer overflow
Vulnerability Center: 894 - [MS02-056] Microsoft SQL Server User Authentication Remote Buffer Overflow Vulnerability, Critical
SecurityFocus: 5411 - Microsoft SQL Server User Authentication Remote Buffer Overflow Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 07/23/2014 11:20Updated: 05/09/2019 11:43
Changes: 07/23/2014 11:20 (91), 05/09/2019 11:43 (2)
Complete: 🔍
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