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GEN:SID | 1:2592 |
Message | SMTP ReplyTo command overflow attempt |
Summary | This event is generated when an attempt is made to exploit a buffer overflow associated with the Mail Transfer Agent Exim. |
Impact | A successful attack may allow the execution of arbitrary code on a vulnerable server with the privilege of the process running Exim. |
Detailed Information | Exim is vulnerable to a buffer overflow, permitting an attacker to execute arbitrary code. The vulnerability may be exploited if Exim is configured to verify header syntax in the e-mail message body. This is not the default configuration. If an attacker supplies a large number of spaces after certain header fields, it may be possible to cause a buffer overflow. |
Affected Systems | Exim prior to version 4.34 |
Attack Scenarios | An attacker can create and send mail with a malformed header, possibly causing a buffer overflow and permitting the execution of arbitrary code. |
Ease of Attack | Simple. |
Corrective Action | Upgrade to the latest non-affected version of the software. |
Additional References | |
Rule References | bugtraq: 10291 cve: 2004-0400 url: www.guninski.com/exim1.html |
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DID:313382
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