HP-UX's implementation of kermit contains a buffer overflow which may allow a local attacker to gain elevated privileges.
From the Kermit Project:
Kermit software offers interactive and scripted file transfer and management, terminal emulation, Unicode-aware character-set conversion, and/or Internet security for Windows, Linux, FreeBSD, OpenBSD, NetBSD, Mac OS X, Solaris, AIX, HP-UX, Tru64 Unix, SCO, QNX, OS/2, VMS, DOS, IBM mainframes, and dozens of other platforms, new and old, over the Internet as well as serial ports and modems. Internet security methods include Kerberos IV, Kerberos V, SSL, TLS, SSH, and SRP. Internet protocols include traditional and secure Telnet, traditional and secure FTP, traditional and secure HTTP. All functions can be automated using Kermit's built-in cross-platform script programming language. Terminal emulations for Windows include VT100, VT220, VT320, ANSI, HP, IBM, Linux Console, Sun Console, QNX, AT386, SCO ANSI, SNI 97801, Televideo, Wyse, and many others.
From the HP-UX security bulletins digest (HPSBUX0305-259):
Until a patch is available, you may wish to follow Hewlett-Packard Company's advice to remove suid permissions from /usr/bin/kermit. According to Hewlett-Packard Company, this will limit the functionality of kermit. Full functionality will be available only to the root user.
This vulnerability was discovered by bt of delfi.lt. The CERT/CC thanks Hewlett-Packard Company for producing Security Bulletin: HPSBUX0305-259, upon which this document is based.
This document was written by Ian A Finlay.
|Date First Published:||2003-05-19|
|Date Last Updated:||2003-05-19 18:49 UTC|