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[email protected]NVD:CVE-2016-5117

HistoryJan 31, 2017 - 7:59 p.m.

CVE-2016-5117

2017-01-3119:59:00

CWE-254

[email protected]

web.nvd.nist.gov

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

5.6

Confidence

High

EPSS

0.002

Percentile

54.0%

JSON

OpenNTPD before 6.0p1 does not validate the CN for HTTPS constraint requests, which allows remote attackers to bypass the man-in-the-middle mitigations via a crafted timestamp constraint with a valid certificate.

Affected configurations

Nvd

Node

openntpdopenntpdRange≤6.0

VendorProductVersionCPE
openntpdopenntpd*cpe:2.3:a:openntpd:openntpd:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openntpd	openntpd	*	cpe:2.3:a:openntpd:openntpd::::::::

References

cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/ntpd/constraint.c.diff?r1=1.27&r2=1.28

www.openntpd.org/txt/release-6.0p1.txt

www.openwall.com/lists/oss-security/2016/05/23/2

www.openwall.com/lists/oss-security/2016/05/29/6

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

5.6

Confidence

High

EPSS

0.002

Percentile

54.0%

JSON

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