ClearSwift MIMEsweeper for SMTP up to 4.3 Encrypted Attachment containing cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in ClearSwift MIMEsweeper for SMTP up to 4.3. This impacts an unknown function of the file containing of the component Encrypted Attachment Handler. Executing a manipulation can lead to cryptographic issue. This vulnerability appears as CVE-2004-2703. The attack may be performed from remote. In addition, an exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in ClearSwift MIMEsweeper for SMTP up to 4.3. It has been declared as problematic. This vulnerability affects an unknown functionality of the file containing of the component Encrypted Attachment Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect integrity. CVE summarizes:

Clearswift MIMEsweeper 5.0.5, when it has been upgraded from MAILsweeper for SMTP version 4.3 or MAILsweeper Business Suite I or II, allows remote attackers to bypass scanning by including encrypted data in a mail message, which causes the message to be marked as "Clean" instead of "Encrypted".

The weakness was presented 11/11/2004 with Clearswift (Website). The advisory is shared for download at download.mimesweeper.com. This vulnerability was named CVE-2004-2703 since 10/06/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1600.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Upgrading to version 5.0.5 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 patching the affected component.

The vulnerability is also documented in the databases at X-Force (18035), SecurityFocus (BID 11669†), OSVDB (11602†) and Secunia (SA13160†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
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: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: MIMEsweeper for SMTP 5.0.5
Patch: clearswift.com

Timelineinfo

11/11/2004 🔍
11/11/2004 +0 days 🔍
11/11/2004 +0 days 🔍
11/11/2004 +0 days 🔍
11/16/2004 +4 days 🔍
12/31/2004 +45 days 🔍
10/06/2007 +1009 days 🔍
06/07/2017 +3532 days 🔍

Sourcesinfo

Advisory: download.mimesweeper.com
Researcher: http://www.clearswift.com
Organization: Clearswift
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2004-2703 (🔍)
GCVE (CVE): GCVE-0-2004-2703
GCVE (VulDB): GCVE-100-988
X-Force: 18035 - MIMEsweeper for SMTP bypass email scanning, Medium Risk
SecurityFocus: 11669 - Clearswift MIMEsweeper For SMTP Encrypted Email Scanner Bypass Vulnerability
Secunia: 13160 - MIMEsweeper for SMTP Encrypted Emails Misclassification Vulnerability, Moderately Critical
OSVDB: 11602 - Clearswift MIMEsweeper for SMTP Encrypted Mail Scanning Bypass

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

Entryinfo

Created: 11/16/2004 12:28
Updated: 06/07/2017 16:04
Changes: 11/16/2004 12:28 (77), 06/07/2017 16:04 (2)
Complete: 🔍
Cache ID: 216::103

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