Inter7 vpopmail vchkpw 4.5/4.7 Syslog USER/PASS denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in Inter7 vpopmail vchkpw 4.5/4.7 and classified as problematic. Affected by this issue is some unknown processing of the component Syslog Handler. The manipulation of the argument USER/PASS with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

vchkpw program in vpopmail before version 4.8 does not properly cleanse an untrusted format string used in a call to syslog, which allows remote attackers to cause a denial of service via a USER or PASS command that contains arbitrary formatting directives.

The weakness was presented 06/30/2000 by H D Moore as confirmed changelog entry (Website). The advisory is shared for download at vpopmail.cx. This vulnerability is handled as CVE-2000-0583. 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.

The vulnerability scanner Nessus provides a plugin with the ID 10463 (vpopmail vchkpw USER/PASS Command Format String), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely and running in the context r.

Upgrading to version 4.8 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5046) and Tenable (10463).

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10463
Nessus Name: vpopmail vchkpw USER/PASS Command Format String
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: vpopmail vchkpw 4.8

Timelineinfo

06/30/2000 🔍
06/30/2000 +0 days 🔍
06/30/2000 +0 days 🔍
06/30/2000 +0 days 🔍
07/15/2000 +15 days 🔍
10/16/2002 +823 days 🔍
06/25/2014 +4270 days 🔍
05/05/2019 +1775 days 🔍

Sourcesinfo

Advisory: vpopmail.cx
Researcher: H D Moore
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2000-0583 (🔍)
X-Force: 5046
Vulnerability Center: 155 - DOS vpopmail < 4.8 via Format String in Syslog Call, Medium
SecurityFocus: 1418 - vpopmail Format String Via User Input Vulnerability

Entryinfo

Created: 06/25/2014 14:51
Updated: 05/05/2019 10:13
Changes: 06/25/2014 14:51 (68), 05/05/2019 10:13 (1)
Complete: 🔍

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