Vulnerability Report

CVE-2016-9042

Title: Siemens Simatic Net Cp 443-1 Opc Ua Denial of Service (DoS)

Denial of Service (DoS)

Proof Of Concept

No public PoC currently indexed for CVE-2016-9042.

CWE Category CWE-20
Published Date Jun 04, 2018
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.9 CVSS v3.1
Exploit Probability (EPSS)
1.78%

Vulnerability Summary

CVE-2016-9042: An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

Impacted Vendors

N
ntp 1
S
siemens 1
H
hpe 1

Reference Links

http://packetstormsecurity.com/files/142101/FreeBSD-Security-Advisory-FreeBSD-SA-17-03.ntp.html http://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html http://seclists.org/fulldisclosure/2017/Nov/7 http://seclists.org/fulldisclosure/2017/Sep/62 http://www.securityfocus.com/archive/1/540403/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/540403/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded http://www.securityfocus.com/bid/97046 http://www.securitytracker.com/id/1038123 http://www.securitytracker.com/id/1039427 http://www.ubuntu.com/usn/USN-3349-1 https://bto.bluecoat.com/security-advisory/sa147 https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf https://kc.mcafee.com/corporate/index?page=content&id=SB10201 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/ https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc https://support.apple.com/kb/HT208144 https://support.f5.com/csp/article/K39041624 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260 http://packetstormsecurity.com/files/142101/FreeBSD-Security-Advisory-FreeBSD-SA-17-03.ntp.html http://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html http://seclists.org/fulldisclosure/2017/Nov/7 http://seclists.org/fulldisclosure/2017/Sep/62 http://www.securityfocus.com/archive/1/540403/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/540403/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded http://www.securityfocus.com/bid/97046 http://www.securitytracker.com/id/1038123 http://www.securitytracker.com/id/1039427 http://www.ubuntu.com/usn/USN-3349-1 https://bto.bluecoat.com/security-advisory/sa147 https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf https://kc.mcafee.com/corporate/index?page=content&id=SB10201 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/ https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc https://support.apple.com/kb/HT208144 https://support.f5.com/csp/article/K39041624 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.9
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.0
Source Entity [email protected]
Severity LOW
3.7
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-9042 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.