Atrium Software Mercur Mail Server 3.20.01 WebView WebMail-Client mail_user memory corruption

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

A vulnerability was found in Atrium Software Mercur Mail Server 3.20.01 (Mail Server Software) and classified as critical. This issue affects some unknown functionality of the component WebView WebMail-Client. The manipulation of the argument mail_user as part of a GET Request 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. The summary by CVE is:

Buffer overflow in the MERCUR WebView WebMail server allows remote attackers to cause a denial of service via a long mail_user parameter in the GET request.

The weakness was published 03/15/2000 by Ussr Labs as not defined advisory (Website). It is possible to read the advisory at ussrback.com. The identification of this vulnerability is CVE-2000-0239. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in Windows Binary. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10346 (MERCUR WebView WebMail Server mail_user Parameter DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4120) and Tenable (10346). Similar entry is available at 15393.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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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: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Nessus ID: 10346
Nessus Name: MERCUR WebView WebMail Server mail_user Parameter DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/15/2000 🔍
03/15/2000 +0 days 🔍
03/15/2000 +0 days 🔍
03/15/2000 +0 days 🔍
03/16/2000 +1 days 🔍
12/22/2002 +1011 days 🔍
06/23/2014 +4201 days 🔍
05/07/2019 +1779 days 🔍

Sourcesinfo

Advisory: ussrback.com
Researcher: Ussr Labs
Status: Not defined

CVE: CVE-2000-0239 (🔍)
X-Force: 4120
Vulnerability Center: 487 - Atrium Software Mercur WebView WebMail-Client Buffer Overflow Vulnerability, Medium
SecurityFocus: 1056 - Atrium Software Mercur WebView WebMail-Client Buffer Overflow Vulnerability

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

Entryinfo

Created: 06/24/2014 00:36
Updated: 05/07/2019 09:15
Changes: 06/24/2014 00:36 (72), 05/07/2019 09:15 (2)
Complete: 🔍

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