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.

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260	Exploit Mitigation Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc	Third Party Advisory
http://www.securitytracker.com/id/1039427	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038123	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/97046	Permissions Required Third Party Advisory VDB Entry
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ntp:ntp:4.2.8:p9:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:freebsd:freebsd:10.0:::::::*
	cpe:2.3:o:freebsd:freebsd:11.0:::::::*

Configuration 3 (hide)

cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:siemens:simatic_net_cp_443-1_opc_ua_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_net_cp_443-1_opc_ua:-:*:*:*:*:*:*:*

Information

Published : 2018-06-04 20:29

Updated : 2021-06-08 19:48

NVD link : CVE-2016-9042

Mitre link : CVE-2016-9042

JSON object : View

Products Affected

hpe

hpux-ntp

freebsd

freebsd

ntp

ntp

siemens

simatic_net_cp_443-1_opc_ua
simatic_net_cp_443-1_opc_ua_firmware

CWE

CWE-20

Improper Input Validation

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