ClearSwift MAILsweeper up to 4.3.19 DNS Reverse Lookup denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.11

Summaryinfo

A vulnerability was found in ClearSwift MAILsweeper up to 4.3.19. It has been classified as problematic. This affects an unknown function of the component DNS Reverse Lookup Handler. This manipulation causes denial of service. The identification of this vulnerability is CVE-2006-3215. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ClearSwift MAILsweeper up to 4.3.19. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component DNS Reverse Lookup Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Clearswift MAILsweeper for SMTP before 4.3.20 and MAILsweeper for Exchange before 4.3.20 allows remote attackers to bypass the "text analysis", possibly bypassing SPAM and other filters, by sending an e-mail specifying a non-existent or unrecognized character set.

The weakness was shared 06/21/2006 by Clearswift Corporation with ClearSwift (Website). The advisory is shared at download.mimesweeper.com. This vulnerability is known as CVE-2006-3215 since 06/23/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at clearswift.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (27301), SecurityFocus (BID 18584†), OSVDB (26737†) and Secunia (SA20756†). The entries VDB-2330, VDB-2328, VDB-30989 and VDB-84177 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: clearswift.com

Timelineinfo

06/21/2006 🔍
06/21/2006 +0 days 🔍
06/21/2006 +0 days 🔍
06/21/2006 +0 days 🔍
06/23/2006 +1 days 🔍
06/23/2006 +0 days 🔍
06/26/2006 +3 days 🔍
04/21/2018 +4317 days 🔍

Sourcesinfo

Advisory: download.mimesweeper.com
Researcher: Clearswift Corporation
Organization: ClearSwift
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-3215 (🔍)
GCVE (CVE): GCVE-0-2006-3215
GCVE (VulDB): GCVE-100-2329
X-Force: 27301 - MAILsweeper for SMTP/Exchange character set security bypass
SecurityFocus: 18584 - Clearswift MAILsweeper for SMTP / Exchange Multiple Vulnerabilities
Secunia: 20756 - MAILsweeper for SMTP/Exchange Multiple Vulnerabilities, Moderately Critical
OSVDB: 26737 - MAILsweeper for SMTP/Exchange Invalid Character Set Scan Bypass
Vupen: ADV-2006-2473

See also: 🔍

Entryinfo

Created: 06/26/2006 17:40
Updated: 04/21/2018 09:34
Changes: 06/26/2006 17:40 (66), 04/21/2018 09:34 (9)
Complete: 🔍
Cache ID: 216:F94:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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