Provided by Aanval (Snort & Syslog Intrusion Detection and Correlation Engine) www.aanval.com
--
GEN:SID | 1:2105 |
Message | IMAP authenticate literal overflow attempt |
Summary | This event is generated when a remote user uses the IMAP AUTHENTICATE command to send a suspiciously long string to port 143 on an internal server. This may indicate an attempt to exploit a buffer overflow vulnerability in the IMAP AUTHENTICATE command. |
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 | Any operating system that runs University of Washington imapd version 10.234 and earlier. |
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 gain root access to the compromised server. |
Ease of Attack | Simple. Exploits exist. |
Corrective Action | Apply the appropriate patches for your operating system. Check the host for signs of compromise. |
Additional References | Bugtraq http://www.securityfocus.com/bid/130 CVE http://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=CVE-1999-0005 Nessus http://cgi.nessus.org/plugins/dump.php3?id=11073 |
Rule References | cve: 1999-0042 nessus: 10292 |
--
DID:500556
--
http://www.aanval.com/