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Rule:
--
Sid:
2330
--
Summary:
This event is generated when a remote user sends an overly long string
to an IMAP server via the command AUTH. This may indicate an attempt to
exploit a buffer overflow condition.
--
Impact:
Serious. Possible remote execution of arbitrary code, which may lead to
a remote root compromise.
--
Detailed Information:
When a large amount of data is sent to a vulnerable IMAP server in the
AUTHENTICATE command, a buffer overflow condition may occur. This can
allow the attacker to execute arbitrary code, which may allow the
attacker to gain root access to the compromised server.
--
Affected Systems:
IMAP servers
--
Attack Scenarios:
An attacker can send a sufficiently long AUTHENTICATE command to the
IMAP server, creating a buffer overflow condition. This can then allow
the attacker to execute code of their choosing and possibly gain root
access to the compromised server.
--
Ease of Attack:
Simple. Exploits exist.
--
False Positives:
None known.
--
False Negatives:
None known.
--
Corrective Action:
Apply the appropriate patches for your operating system.
Check the host for signs of compromise.
--
Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
--
Additional References:
--
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