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Mend.io Vulnerability Database

CVE-2015-1798

Date: April 8, 2015

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.

Language: C

Severity Score

3.1

Related Resources (26)

Url: https://kc.mcafee.com/corporate/index?page=content&id=SB10114

Url: http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

Url: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd

Url: https://security.gentoo.org/glsa/201509-01

Url: https://nvd.nist.gov/vuln/detail/CVE-2015-1798

Url: http://marc.info/?l=bugtraq&m=143213867103400&w=2

Url: http://rhn.redhat.com/errata/RHSA-2015-1459.html

Url: http://bugs.ntp.org/show_bug.cgi?id=2779

Url: http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2015-1798

Url: http://www.securitytracker.com/id/1032032

Url: http://tools.cisco.com/security/center/viewAlert.x?alertId=38276

Url: http://www.ubuntu.com/usn/USN-2567-1

Url: http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html

Url: http://www.securityfocus.com/bid/73951

Url: http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html

Url: https://security-tracker.debian.org/tracker/CVE-2015-1798

Url: http://www.debian.org/security/2015/dsa-3223

Url: http://www.mandriva.com/security/advisories?name=MDVSA-2015:202

Url: http://support.apple.com/kb/HT204942

Url: http://www.kb.cert.org/vuls/id/374268

Url: http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Url: https://access.redhat.com/security/cve/CVE-2015-1798

Url: http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html

Url: https://www.mend.io/vulnerability-database/CVE-2015-1798

Severity Score

3.1

Weakness Type (CWE)

Code

CWE-17

CVSS v3.1

Base Score:	3.1
Attack Vector (AV):	ADJACENT_NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	LOW
Availability (A):	NONE

CVSS v2

Base Score:	1.8
Access Vector (AV):	ADJACENT
Access Complexity (AC):	HIGH
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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CVE-2015-1798

Date: April 8, 2015

Language: C

Severity Score

Related Resources (26)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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