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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200611-05] Netkit FTP Server: Privilege escalation


Vulnerability Assessment Details

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

Vulnerability Assessment Summary
Netkit FTP Server: Privilege escalation

Detailed Explanation for this Vulnerability Assessment
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 permit a possible hacker 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
permits 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.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5778


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


Network Security Threat Level: High


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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