CVE-2017-7418 proftpd-dfsg


2017-12-29 22:41
2017-07-22 13:03
2017-07-22 12:03
2017-06-18 07:51
2017-06-16 19:22
2017-04-12 05:03
2017-04-06 17:03
2017-04-06 05:03
2017-04-05 08:03
2017-04-05 06:03


ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.

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Affected package information

Release Package Patched in
buster proftpd-dfsg 1.3.5b-4
jessie proftpd-dfsg 1.3.5-1.1+deb8u2
sid proftpd-dfsg 1.3.5b-4
stretch proftpd-dfsg 1.3.5b-4
wheezy proftpd-dfsg None