Microsoft Exchange 4.0/5.0 SMTP HELO memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability classified as critical was found in Microsoft Exchange 4.0/5.0 (Groupware Software). This vulnerability affects an unknown functionality of the component SMTP HELO Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

denial of service to nt mail servers including ipswitch mdaemon and exchange through a buffer overflow in the smtp helo command.

The weakness was published 01/01/1998 with Shell. This vulnerability was named CVE-1999-0284. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

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 10162 (Lotus Notes SMTP Server HELO Command Overflow DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SMTP problems and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (886), Exploit-DB (23146), Tenable (10162), SecurityFocus (BID 8555†) and Vulnerability Center (SBV-401†). Similar entries are available at VDB-14097, VDB-14110 and VDB-14116. Once again VulDB remains the best source for vulnerability data.

Affected

  • IBM Lotus Domino
  • Microsoft Exchange 4.0/5.0

Productinfo

Type

Vendor

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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

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: 10162
Nessus Name: Lotus Notes SMTP Server HELO Command Overflow DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

01/01/1998 🔍
01/01/1998 +0 days 🔍
01/01/1998 +0 days 🔍
03/10/1998 +68 days 🔍
06/22/1999 +469 days 🔍
12/17/2002 +1274 days 🔍
06/18/2014 +4201 days 🔍
01/13/2025 +3861 days 🔍

Sourcesinfo

Vendor: microsoft.com

Organization: Shell
Status: Confirmed

CVE: CVE-1999-0284 (🔍)
X-Force: 886
SecurityFocus: 8555 - Microsoft Exchange Server SMTP HELO Argument Buffer Overflow Vulnerability
Vulnerability Center: 401 - Buffer Overflow in NT Mail Servers via SMTP HELO Command, High

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

Entryinfo

Created: 06/18/2014 06:08 PM
Updated: 01/13/2025 12:21 AM
Changes: 06/18/2014 06:08 PM (65), 05/06/2019 04:47 PM (6), 01/13/2025 12:21 AM (19)
Complete: 🔍
Cache ID: 18:BF7:40

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