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Family: Gentoo Local Security Checks --> Category: infos

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

Vulnerability Scan Summary
Netkit FTP Server: Privilege escalation

Detailed Explanation for this Vulnerability Test
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 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.


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.


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/ftpd-0.17-r4"

Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.


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