CVE-2011-4862
HighSummary
Przepełnienie bufora w libtelnet/encrypt.c w telnetd w systemach FreeBSD od wersji 7.3 do 9.0 oraz w aplikacjach MIT Kerberos Version 5 (krb5-appl) w wersji 1.0.2 i wcześniejszych, Heimdal w wersji 1.5.1 i wcześniejszych, GNU inetutils oraz prawdopodobnie innych produktach, umożliwia zdalnym atakującym wykonanie dowolnego kodu poprzez długi klucz szyfrowania. Wykorzystanie tej podatności miało miejsce w grudniu 2011 roku.
Risk Assessment
Podatność ta stwarza poważne ryzyko dla organizacji, ponieważ umożliwia zdalne wykonanie kodu, co może prowadzić do przejęcia kontroli nad systemem. Atakujący mogą wykorzystać tę lukę do wprowadzenia złośliwego oprogramowania lub kradzieży danych.
Recommendation
Zaleca się aktualizację systemów do najnowszych wersji, które eliminują tę podatność. Należy również monitorować systemy pod kątem nieautoryzowanych prób dostępu oraz wdrożyć dodatkowe środki zabezpieczające, takie jak zapory sieciowe.
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Original NVD description (English source)
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS