ProFTPD is prone to an overflow condition. The 'sql_prepare_where' function, contrib/mod_sql.c, fails to properly sanitize user-supplied input resulting in a heap-based buffer overflow. With a specially crafted username containing substitution tags, a remote attacker can potentially execute arbitrary code.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity,
Loss of Availability
Solution:
Upgrade
Exploit:
Exploit Public
Disclosure:
Vendor Verified
Solution
Upgrade to version 1.3.3d or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
