GEN:SID | 1:2593 |
Message | SMTP Sender 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
|