GLSA-200611-05 : Netkit FTP Server: Privilege escalation

Medium Nessus Plugin ID 23670


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200611-05 (Netkit FTP Server: Privilege escalation)

Paul Szabo reported that an incorrect seteuid() call after the chdir() function can allow an attacker to access a normally forbidden directory, in some very particular circumstances, for example when the NFS-hosted targetted directory is not reachable by the client-side root user. Additionally, some potentially exploitable unchecked setuid() calls were also fixed.
Impact :

A local attacker might craft his home directory to gain access through ftpd to normally forbidden directories like /root, possibly with writing permissions if seteuid() fails and if the ftpd configuration allows that. The unchecked setuid() calls could also lead to a root FTP login, depending on the FTP server configuration.
Workaround :

There is no known workaround at this time.


All Netkit FTP Server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-ftp/netkit-ftpd-0.17-r4'

See Also

Plugin Details

Severity: Medium

ID: 23670

File Name: gentoo_GLSA-200611-05.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2006/11/20

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:netkit-ftpd, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2006/11/10

Vulnerability Publication Date: 2006/08/24

Reference Information

CVE: CVE-2006-5778

OSVDB: 30339, 30340

GLSA: 200611-05