CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Seattle Lab SLMail Server 3.0.2421 (Mail Server Software). Affected by this issue is some unknown functionality of the component Command Handler. The manipulation of the argument VRFY/EXPN 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 MERCUR SMTP server 3.30 allows remote attackers to execute arbitrary commands via a long EXPN command.

The weakness was disclosed 02/04/1999 by Martin Rakhmanoff with eEye (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is handled as CVE-2001-0280. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

After 3 years, there has been an exploit disclosed. The vulnerability scanner Nessus provides a plugin with the ID 10620 (MERCUR SMTP Server EXPN Command Remote Overflow), 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1056.

The vulnerability is also documented in the databases at X-Force (6149) and Tenable (10620). The entry 16645 is pretty similar.

Productinfo

Type

• Mail Server Software

Vendor

• Seattle Lab

Name

• SLMail Server

Version

• 3.0.2421

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 10620
Nessus Name: MERCUR SMTP Server EXPN Command Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
TippingPoint: 🔍

Timelineinfo

02/04/1999 🔍
02/04/1999 +0 days 🔍
02/04/1999 +0 days 🔍
02/23/2001 +750 days 🔍
02/26/2001 +2 days 🔍
05/03/2001 +66 days 🔍
11/23/2003 +934 days 🔍
04/09/2004 +137 days 🔍
07/10/2016 +4475 days 🔍
02/20/2019 +955 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Martin Rakhmanoff
Organization: eEye
Status: Not defined

CVE: CVE-2001-0280 (🔍)
X-Force: 6149
Vulnerability Center: 2900 - The SLMail Server Crashed Upon Receival of a Long Argument to the VRFY or EXPN Command, Medium
SecurityFocus: 223 - SLMail VRFY and EXPN Buffer Overflow Vulnerabilities
OSVDB: 6027 - MERCUR SMTP Server EXPN Command Remote Overflow

See also: 🔍

Entryinfo

Created: 07/10/2016 16:50
Updated: 02/20/2019 15:58
Changes: 07/10/2016 16:50 (70), 02/20/2019 15:58 (5)
Complete: 🔍

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