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CVE-2017-7418 PUBLISHED

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.

EPSS 0.07% · 20.1th percentile

Risk Scores

EPSS Score
0.07%
20.1th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSproftpd-dfsg0, 1.3.5-2, 1.3.5a-1

Timeline

References

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