WU-FTPD MAIL_ADMIN configuration SockPrintf buffer overflow
| wuftp-mailadmin-sockprintf-bo (13269) |  High Risk |
Description:
Washington University's FTP daemon (WU-FTPD) is vulnerable to a buffer overflow in the SockPrintf function in the ftpd.c file, if the server is compiled with the MAIL_ADMIN option, which is not the default configuration. A remote attacker, with file upload privileges, could upload a large file to overflow a buffer and possibly execute arbitrary code on the system with privileges of the WU-FTPD process.
Platforms Affected:
- Washington University, WU-FTPD 2.5
- Washington University, WU-FTPD 2.6.0
- Washington University, WU-FTPD 2.6.1
- Washington University, WU-FTPD 2.6.2
Remedy:
For Slackware Linux:
Refer to the slackware-security Mailing List posting dated Tue, 23 Sep 2003 23:07:06 -0700 (PDT) for patch or upgrade information. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Mon Sep 22 2003 - 07:44:16 CDT, Wu_ftpd all versions (not) vulnerability. at http://archives.neohapsis.com/archives/bugtraq/2003-09/0348.html.
- slackware-security Mailing List, Tue, 23 Sep 2003 23:07:06 -0700 (PDT), WU-FTPD Security Advisory (SSA:2003-259-03) at http://www.slackware.org/security/viewer.php?l=slackware-security&y=2003&m=slackware-security.365971.
- WU-FTPD Development Group Web site, WU-FTPD Development Group at http://www.wu-ftpd.org/.
- BID-8668: Wu-Ftpd SockPrintf() Remote Stack-based Buffer Overrun Vulnerability
- CVE-2003-1327: Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option enabled on a system that supports very long pathnames, might allow remote anonymous users to execute arbitrary code by uploading a file with a long pathname, which triggers the overflow when wu-ftpd constructs a notification message to the administrator.
- OSVDB ID: 2594: WU-FTPD MAIL_ADMIN Function Remote Overflow
- SA9835: WU-FTPD "MAIL_ADMIN" Buffer Overflow Vulnerability
- SECTRACK ID: 1007775: wu-ftpd MAIL_ADMIN Option May Let Remote Authenticated Users Execute Arbitrary Code
Reported:
Sep 22, 2003
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