E-Post SMTP username buffer overflow
| epost-smtp-username-bo (24331) |  High Risk |
Description:
E-Post Mail Server Enterprise, E-Post Mail Server, E-Post SMTP Server Enterprise, E-Post SMTP Server, and SPA-PRO Mail @Solomon Enterprise is vulnerable to a buffer overflow caused by improper bounds checking by the SMTP service. By sending an overly long username to the AUTH PLAIN or AUTH LOGIN commands, a remote attacker could overflow a buffer and execute arbitrary code on the system.
Platforms Affected:
- e-Post, E-Post Mail Server 4.10
- e-Post, E-Post Mail Server Enterprise 4.10
- e-Post, E-Post SMTP Server 4.10
- e-Post, E-Post SMTP Server Enterprise 4.10
- e-Post, SPA-PRO Mail @Solomon 4.00
- e-Post, SPA-PRO Mail @Solomon Enterprise 4.00
- e-Post, SPA-PRO SMTP @Solomon 4.00
Remedy:
Apply the appropriate patch as listed in the Secunia Security Advisory: SA18480. See References.
Consequences:
Gain Access
References:
- E-Post Web site, E-Post Web site at http://www.e-postinc.jp/download.html. (Site in Japanese)
- BID-16379: E-Post MailServer Multiple Remote Vulnerabilities
- CVE-2006-0447: Multiple buffer overflows in E-Post Mail Server 4.10 and SPA-PRO Mail @Solomon 4.00 allow remote attackers to execute arbitrary code via a long username to the (1) AUTH PLAIN or (2) AUTH LOGIN SMTP commands, which is not properly handled by (a) EPSTRS.EXE or (b) SPA-RS.EXE; (3) a long username in the APOP POP3 command, which is not properly handled by (c) EPSTPOP4S.EXE or (d) SPA-POP3S.EXE; (4) a long IMAP DELETE command, which is not properly handled by (e) EPSTIMAP4S.EXE or (f) SPA-IMAP4S.EXE.
- OSVDB ID: 22761: E-Post Multiple Product SMTP Multiple AUTH Command Remote Overflow
- OSVDB ID: 22762: E-Post Multiple Product POP3 APOP Command Username Remote Overflow
- OSVDB ID: 22763: E-Post Multiple Product IMAP DELETE Command Mailbox Name Overflow DoS
- SA18480: E-Post Mail Server Products Multiple Vulnerabilities
- VUPEN/ADV-2006-0318: E-Post Mail Products Buffer Overflow and Denial of Service Vulnerabilities
Reported:
Jan 25, 2006
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