The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.

Computer vulnerabilities of ESX

computer vulnerability bulletin CVE-2010-3856

glibc: privilege elevation via LD_AUDIT and constructor

Synthesis of the vulnerability

A local attacker can use the LD_AUDIT variable and the constructor of a system library, in order to obtain privileges of suid/sgid programs.
Impacted products: Debian, Fedora, MES, Mandriva Linux, openSUSE, RHEL, Slackware, SLES, ESX.
Severity: 2/4.
Creation date: 25/10/2010.
Revision date: 07/11/2014.
Identifiers: BID-44347, CERTA-2002-AVI-272, CVE-2010-3856, DSA-2122-1, DSA-2122-2, FEDORA-2010-16641, FEDORA-2010-16655, FEDORA-2010-16851, MDVSA-2010:212, openSUSE-SU-2010:0912-1, openSUSE-SU-2010:0913-1, openSUSE-SU-2010:0914-1, RHSA-2010:0793-01, RHSA-2010:0872-02, SSA:2010-301-01, SUSE-SA:2010:052, VIGILANCE-VUL-10068, VMSA-0001.3, VMSA-2011-0001, VMSA-2011-0001.1, VMSA-2011-0001.2, VMSA-2011-0001.3.

Description of the vulnerability

The glibc/ld.so program dynamically loads libraries.

The LD_AUDIT environment variable indicates an object list (Link-Auditing interface), that ld.so has to load.

When a program is suid or sgid, libraries indicated in LD_AUDIT are only loaded if they are located in a system library (such as /lib).

However, constructors of some libraries in /lib were not securely conceived. For example, the constructor of /lib/libpcprofile.so (installed with the glibc package) accepts to create a file with a name indicated in the PCPROFILE_OUTPUT variable.

A local attacker can therefore use the LD_AUDIT variable and the constructor of libpcprofile.so, in order to obtain privileges of suid/sgid programs.
Complete Vigil@nce bulletin.... (Free trial)

vulnerability alert CVE-2014-6278

bash: command execution in the function parser

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, MBS, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, openSUSE Leap, Solaris, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 3/4.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-6278, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1310-1, openSUSE-SU-2016:2961-1, SB10085, sk102673, SOL15629, SSA:2014-272-01, SSA-860967, T1021272, USN-2380-1, VIGILANCE-VUL-15421, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

The bash interpreter can use functions.

However, when bash parses the source code to create the function, it directly executes commands located at some places. Technical details are unknown.

This vulnerability can be used with the same attack vector than VIGILANCE-VUL-15399.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Complete Vigil@nce bulletin.... (Free trial)

vulnerability CVE-2014-6277

bash: memory corruption in the function parser

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, MBS, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, openSUSE Leap, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 3/4.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-6277, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1310-1, openSUSE-SU-2016:2961-1, SB10085, sk102673, SOL15629, SSA:2014-272-01, SSA-860967, T1021272, USN-2380-1, VIGILANCE-VUL-15420, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

The bash interpreter can use functions.

However, when bash parses the source code to create the function, it corrupts its memory. Technical details are unknown.

This vulnerability can be used with the same attack vector than VIGILANCE-VUL-15399.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Complete Vigil@nce bulletin.... (Free trial)

computer vulnerability note CVE-2014-7186 CVE-2014-7187

bash: two denial of service

Synthesis of the vulnerability

An attacker can use several vulnerabilities of bash.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, MBS, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 1/4.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-7186, CVE-2014-7187, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1229-1, openSUSE-SU-2014:1242-1, openSUSE-SU-2014:1248-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, RHSA-2014:1311-01, RHSA-2014:1312-01, RHSA-2014:1354-01, RHSA-2014:1865-01, SB10085, sk102673, SOL15629, SSA-860967, SUSE-SU-2014:1247-1, SUSE-SU-2014:1247-2, T1021272, USN-2364-1, VIGILANCE-VUL-15419, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

Several vulnerabilities were announced in bash.

An attacker can force a read at an invalid address in redir_stack, in order to trigger a denial of service. [severity:1/4; CVE-2014-7186]

An attacker can generate a buffer overflow of one byte in word_lineno, in order to trigger a denial of service, and possibly to execute code. [severity:1/4; CVE-2014-7187]
Complete Vigil@nce bulletin.... (Free trial)

vulnerability alert CVE-2014-7169

bash: code execution via Function Variable

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: Arkoon FAST360, GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, Cisco ASR, Cisco ACE, ASA, IOS XE Cisco, Cisco IPS, IronPort Encryption, Nexus by Cisco, NX-OS, Secure ACS, Cisco CUCM, Cisco Unified CCX, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Debian, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiManager, FortiManager Virtual Appliance, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, MBS, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, pfSense, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere, WindRiver Linux.
Severity: 3/4.
Creation date: 25/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, cisco-sa-20140926-bash, CTX200217, CTX200223, CVE-2014-3659-REJECT, CVE-2014-7169, DSA-3035-1, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, FEDORA-2014-11514, FEDORA-2014-11527, FEDORA-2014-12202, FG-IR-14-030, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2014:190, MDVSA-2015:164, openSUSE-SU-2014:1229-1, openSUSE-SU-2014:1242-1, openSUSE-SU-2014:1248-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, pfSense-SA-14_18.packages, RHSA-2014:1306-01, RHSA-2014:1311-01, RHSA-2014:1312-01, RHSA-2014:1354-01, RHSA-2014:1865-01, SB10085, sk102673, SOL15629, SSA:2014-268-01, SSA:2014-268-02, SSA-860967, SUSE-SU-2014:1247-1, SUSE-SU-2014:1247-2, T1021272, USN-2363-1, USN-2363-2, VIGILANCE-VUL-15401, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9, VN-2014-002.

Description of the vulnerability

The bulletin VIGILANCE-VUL-15399 describes a vulnerability of bash.

However, the offered patch (VIGILANCE-SOL-36695) is incomplete. An variant of the initial attack can thus still be used to execute code or to create a file.

In this case, the code is run when the variable is parsed (which is not necessarily an environment variable), and not when the shell starts. The impact may thus be lower, but this was not confirmed.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Complete Vigil@nce bulletin.... (Free trial)

computer vulnerability note CVE-2014-6271

bash: code execution via Environment Variable, ShellShock

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: Arkoon FAST360, GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, Cisco ASR, Cisco ACE, ASA, IOS XE Cisco, Cisco IPS, IronPort Encryption, Nexus by Cisco, NX-OS, Secure ACS, Cisco CUCM, Cisco Unified CCX, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Debian, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiManager, FortiManager Virtual Appliance, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, MBS, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, pfSense, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere, WindRiver Linux.
Severity: 4/4.
Creation date: 24/09/2014.
Identifiers: 1141597, 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-ALE-006, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, cisco-sa-20140926-bash, CTX200217, CTX200223, CVE-2014-6271, DSA-3032-1, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, FEDORA-2014-11360, FEDORA-2014-11503, FG-IR-14-030, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2014:186, MDVSA-2015:164, openSUSE-SU-2014:1226-1, openSUSE-SU-2014:1238-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, pfSense-SA-14_18.packages, RHSA-2014:1293-01, RHSA-2014:1294-01, RHSA-2014:1295-01, RHSA-2014:1354-01, SB10085, ShellShock, sk102673, SOL15629, SSA:2014-267-01, SSA-860967, SUSE-SU-2014:1212-1, SUSE-SU-2014:1213-1, SUSE-SU-2014:1214-1, SUSE-SU-2014:1223-1, T1021272, USN-2362-1, VIGILANCE-VUL-15399, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9, VN-2014-002, VU#252743.

Description of the vulnerability

When bash interpreter is started, environment variables of the parent process are transfered to the current process. For example:
  export A=test
  bash
  echo $A

Functions can also be transfered through environment variables. For example:
  export F='() { echo bonjour; }'
  bash
  F

However, bash loads functions by interpreting the full environment variable. If an environment variable starts with "() {" and ends with "; command", then the command is run when the shell is started.

The main attack vectors are:
 - CGI scripts (Apache mod_cgi, mod_cgid) on a web server (variables: HTTP_header, REMOTE_HOST, SERVER_PROTOCOL)
 - OpenSSH via AcceptEnv (variables : TERM, ForceCommand avec SSH_ORIGINAL_COMMAND)

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Complete Vigil@nce bulletin.... (Free trial)

computer vulnerability bulletin CVE-2014-1209 CVE-2014-1210

VMware vSphere Client: two vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of VMware vSphere Client.
Impacted products: ESX, ESXi, vCenter Server, VMware vSphere, VMware vSphere Hypervisor.
Severity: 2/4.
Creation date: 11/04/2014.
Identifiers: CERTFR-2014-AVI-176, CVE-2014-1209, CVE-2014-1210, ESX400-201404001, ESX400-201404402-SG, ESX410-201404001, ESX410-201404402-SG, ESXi400-201404001, ESXi400-201404401-SG, ESXi410-201404001, ESXi410-201404401-SG, VIGILANCE-VUL-14578, VMSA-2013-0006.1, VMSA-2013-0009.1, VMSA-2013-0012.1, VMSA-2014-0002.1, VMSA-2014-0003.

Description of the vulnerability

Several vulnerabilities were announced in VMware vSphere Client.

An attacker can create a fake update, and invite the victim to download it and to update it. [severity:2/4; CVE-2014-1209]

An attacker can setup a fake vCenter server, with a malicious certificate, but which is accepted by VMware vSphere Client. [severity:2/4; CVE-2014-1210]
Complete Vigil@nce bulletin.... (Free trial)

computer vulnerability CVE-2014-1208

VMware: denial of service via VMX

Synthesis of the vulnerability

A local attacker can use an invalid port, in order to trigger a denial of service on the VMX process of VMware products.
Impacted products: ESX, ESXi, VMware Player, VMware vSphere, VMware vSphere Hypervisor, VMware Workstation.
Severity: 2/4.
Creation date: 17/01/2014.
Identifiers: BID-64994, CERTA-2013-AVI-657, CERTFR-2014-AVI-036, CVE-2014-1208, ESX400-201310001, ESX400-201310401-SG, ESX400-201310402-SG, ESX410-201312001, ESX410-201312401-SG, ESX410-201312403-SG, ESXi400-201310001, ESXi400-201310401-SG, ESXi410-201312001, ESXi410-201312401-SG, ESXi500-201310101-SG, ESXi510-201401101-SG, VIGILANCE-VUL-14105, VMSA-2013-0007.1, VMSA-2013-0009.2, VMSA-2013-0009.3, VMSA-2013-0015, VMSA-2014-0001.

Description of the vulnerability

The VMX process is used to manage virtual machines.

However, an attacker located in a guest system can use an invalid port, in order to stop the VMX process. Technical details are unknown.

A local attacker can therefore use an invalid port, in order to trigger a denial of service on the VMX process of VMware products.
Complete Vigil@nce bulletin.... (Free trial)

vulnerability note CVE-2014-1207

VMware ESX, ESXi: NULL pointer dereference via NFC

Synthesis of the vulnerability

An attacker can dereference a NULL pointer in NFC of VMware ESX or ESXi, in order to trigger a denial of service.
Impacted products: ESX, ESXi, VMware vSphere, VMware vSphere Hypervisor.
Severity: 2/4.
Creation date: 17/01/2014.
Identifiers: BID-64995, CERTA-2013-AVI-657, CERTFR-2014-AVI-036, CVE-2014-1207, ESX400-201310001, ESX400-201310401-SG, ESX400-201310402-SG, ESX410-201312001, ESX410-201312401-SG, ESX410-201312403-SG, ESXi400-201310001, ESXi400-201310401-SG, ESXi410-201312001, ESXi410-201312401-SG, ESXi500-201310101-SG, ESXi510-201401101-SG, VIGILANCE-VUL-14104, VMSA-2013-0007.1, VMSA-2013-0009.2, VMSA-2013-0009.3, VMSA-2013-0015, VMSA-2014-0001.

Description of the vulnerability

The NFC (Network File Copy) protocol is used to transfer files.

However, it does not check if a pointer is NULL, before using it.

An attacker can therefore dereference a NULL pointer in NFC of VMware ESX or ESXi, in order to trigger a denial of service.
Complete Vigil@nce bulletin.... (Free trial)

vulnerability note CVE-2013-5211

ntp.org: distributed denial of service via monlist

Synthesis of the vulnerability

An attacker can use monlist of ntp.org, in order to trigger a distributed denial of service.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, Provider-1, CheckPoint Security Appliance, CheckPoint Security Gateway, Cisco ASR, Cisco Catalyst, IOS by Cisco, IOS XE Cisco, IOS XR Cisco, Nexus by Cisco, NX-OS, Cisco Router, Cisco CUCM, Cisco Unified CCX, Cisco MeetingPlace, FreeBSD, HP-UX, AIX, Juniper J-Series, Junos OS, Meinberg NTP Server, NetBSD, NTP.org, openSUSE, Solaris, Trusted Solaris, pfSense, Puppet, Slackware, ESX, ESXi, vCenter Server, VMware vSphere, VMware vSphere Hypervisor.
Severity: 2/4.
Creation date: 31/12/2013.
Identifiers: 1532, BID-64692, c04084148, CERTA-2014-AVI-034, CERTFR-2014-AVI-069, CERTFR-2014-AVI-112, CERTFR-2014-AVI-117, CERTFR-2014-AVI-244, CERTFR-2014-AVI-526, CSCtd75033, CSCum44673, CSCum52148, CSCum76937, CSCun84909, CSCur38341, CVE-2013-5211, ESX400-201404001, ESX400-201404402-SG, ESX410-201404001, ESX410-201404402-SG, ESXi400-201404001, ESXi400-201404401-SG, ESXi410-201404001, ESXi410-201404401-SG, ESXi510-201404001, ESXi510-201404101-SG, ESXi510-201404102-SG, ESXi550-201403101-SG, FreeBSD-SA-14:02.ntpd, HPSBUX02960, JSA10613, MBGSA-1401, NetBSD-SA2014-002, openSUSE-SU-2014:0949-1, openSUSE-SU-2014:1149-1, sk98758, SSA:2014-044-02, SSRT101419, VIGILANCE-VUL-14004, VMSA-2014-0002, VMSA-2014-0002.1, VMSA-2014-0002.2, VMSA-2014-0002.4, VMSA-2015-0001.

Description of the vulnerability

The ntp.org service implements the "monlist" command, which returns the list of the 600 last clients which connected to the server.

However, the size of the reply is larger than the size of the query. Moreover, public NTP servers request no authentication, and UDP packets can be spoofed.

An attacker can therefore use monlist of ntp.org, in order to trigger a distributed denial of service.
Complete Vigil@nce bulletin.... (Free trial)
Our database contains other pages. You can request a free trial to read them.