EServ FTP bounce attack
| eserv-ftp-bounce (8021) |  Medium Risk |
Description:
EServ is vulnerable to an FTP bounce attack that uses the PORT command. In an FTP bounce attack, the FTP client specifies an IP address that is different from its own, which causes the FTP server to make a connection and send data to another host on the network. This creates the appearance that the computer is being probed or attacked by the FTP server; when, in fact, it is the FTP client that is indirectly attacking it.
Consequences:
Bypass Security
Remedy:
Upgrade to the latest version of EServ (2.98-beta or later), available from the EServ FTP site. See References.
References:
- BugTraq Mailing List, Tue Jan 29 2002 - 15:33:00 CST: Vulnerabilities in EServ 2.97.
- EServ FTP site: /pub/beta/2.98/.
- EServ Web site: EServ.
- BID-3986: Etype EServ Bounce Attack Vulnerability
- CVE-2002-0222: Etype Eserv 2.97 allows remote attackers to redirect traffic to other sites (aka FTP bounce) via the PORT command.
- OSVDB ID: 6703: Etype Eserv PORT Command Arbitrary Traffic Redirect
Platforms Affected:
- Etype Company EServ 2.97
Reported:
Jan 29, 2002
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