CVE-2011-5166
HighSummary
W KnFTP 1.0.0 występuje wiele przepełnień bufora na stosie, które mogą być wykorzystane przez zdalnych atakujących do wykonania dowolnego kodu. Atak może być przeprowadzony poprzez wysłanie długiego ciągu znaków do różnych komend FTP.
Risk Assessment
Podatność ta stwarza poważne ryzyko dla bezpieczeństwa systemu, umożliwiając atakującym zdalne wykonanie kodu, co może prowadzić do przejęcia kontroli nad serwerem FTP. Organizacje powinny być świadome potencjalnych konsekwencji związanych z utratą danych i dostępem do systemów.
Recommendation
Zaleca się aktualizację do najnowszej wersji KnFTP, która eliminuje te podatności. Dodatkowo, warto rozważyć ograniczenie dostępu do serwera FTP tylko dla zaufanych użytkowników oraz monitorowanie logów w celu wykrycia podejrzanej aktywności.
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Original NVD description (English source)
Multiple stack-based buffer overflows in KnFTP 1.0.0 allow remote attackers to execute arbitrary code via a long string to the (1) USER, (2) PASS, (3) REIN, (4) QUIT, (5) PORT, (6) PASV, (7) TYPE, (8) STRU, (9) MODE, (10) RETR, (11) STOR, (12) APPE, (13) ALLO, (14) REST, (15) RNFR, (16) RNTO, (17) ABOR, (18) DELE, (19) CWD, (20) LIST, (21) NLST, (22) SITE, (23) STST, (24) HELP, (25) NOOP, (26) MKD, (27) RMD, (28) PWD, (29) CDUP, (30) STOU, (31) SNMT, (32) SYST, and (33) XPWD commands.

