GEN:SID | 1:1752 |
Message | MISC AIM AddExternalApp attempt |
Summary | This event is generated when exploit traffic is observed that attempts to cause a buffer overflow in a Windows host running America Online (AOL) Instant Messenger (AIM).
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Impact | Attempted user level access. A successful attack may permit the execution of arbitrary code with the privileges of the user running AIM.
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Detailed Information | AIM can be used for message and file exchanges as well as many other applications. A buffer overflow exists in AIM code that requests external applications (AddExternalAPP) that may permit the execution of arbitrary code on a Windows client AIM host with the privileges of the user running AIM.
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Affected Systems | Windows hosts running AIM 4.2 - 4.8.2616.
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Attack Scenarios | An attacker may craft a malformed AIM add external application request causing a buffer overflow, and potentially permitting the execution of arbitrary code with the privileges of the user running AIM.
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Ease of Attack | Simple. Exploit code is freely available.
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Corrective Action | -Workstation: Upgrade to version 2001B Beta v5.18 Build #3659 or later.
or
Go to Preferences in AIM -> Privacy -> In "Who can contact me" check "Allow only users on my Buddy List".
-Network: Block AIM traffic into and out of your network.
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Additional References | CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0362
Bugtraq: http://www.securityfocus.com/bid/4677
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Rule References | url: www.w00w00.org/files/w00aimexp/
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