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MAILsweeper for SMTP/Exchange Multiple Vulnerabilities
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Secunia Advisory:
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SA20756
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Release Date:
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2006-06-21
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Last Update:
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2006-06-28
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Critical:
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Moderately critical
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Impact:
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Security Bypass
DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | CS MAILsweeper 4.x for Exchange 2000
CS MAILsweeper 4.x for SMTP
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| | CVE reference: | CVE-2006-3215 (Secunia mirror)
CVE-2006-3216 (Secunia mirror)
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Description:
Some vulnerabilities have been reported in MAILsweeper for SMTP/Exchange, which can be exploited by malicious people to bypass certain security restrictions and potentially cause a DoS (Denial of Service).
1) An error exists within the handling of messages that specify a non-existent character set. This can be exploited to bypass text analysis.
2) An error exists within the handling of reverse DNS lookups when the "Received" header in a message includes non-ASCII characters. This can be exploited to cause the Receiver service to stop processing messages.
3) An error exists within the handling of certain malformed messages. This can be exploited to cause the Security service to stop processing messages.
The vulnerabilities have been reported in the following products:
* MAILsweeper for SMTP version 4.3.19
* MIMEsweeper for Exchange version 4.3.19
Prior versions may also be affected.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.
Solution:
Update to version 4.3.20 (requires 4.3.19).
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2006-06-28: Added CVE references.
Original Advisory:
http://download.mimesweeper.com/www/TechnicalDocumentation/ReadMe_MSW_4,3,20.htm
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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8 Related Secunia Security Advisories
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1. MAILsweeper MIME Decoding Vulnerabilities
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2. MAILsweeper for SMTP Attachment Blocking Bypass Vulnerability
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3. MAILsweeper for SMTP PowerPoint Document Processing Denial of Service
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4. MAILsweeper for SMTP RAR Attachment Denial of Service Vulnerability
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5. MAILsweeper Malformed Zip Archive Virus Detection Bypass
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6. MAILsweeper for SMTP RTF Attachment Denial of Service
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7. MAILsweeper for SMTP Filter Bypass and Denial of Service
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8. MIMEsweeper Filter Bypass
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