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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200611-05] Netkit FTP Server: Privilege escalation Vulnerability Assessment Details
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[GLSA-200611-05] Netkit FTP Server: Privilege escalation |
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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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