National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-3405 Detail

Current Description

ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and not #, which might allow remote attackers to obtain the value of generated MD5 keys via a brute force attack with the 93 possible keys.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg Third Party Advisory Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1459.html Third Party Advisory VDB Entry
http://rhn.redhat.com/errata/RHSA-2015-2231.html Third Party Advisory VDB Entry
http://www.debian.org/security/2015/dsa-3223 Third Party Advisory
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/23/14 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/74045 Third Party Advisory VDB Entry
https://bugs.ntp.org/show_bug.cgi?id=2797 Issue Tracking Third Party Advisory Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1210324 Issue Tracking Patch Third Party Advisory VDB Entry
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.2.8:p2_rc1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ntp:ntp:4.3.11:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:opensuse:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:opensuse_project:suse_linux_enterprise_desktop:11.0:sp3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_server_from_rhui_6:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-3405
NVD Published Date:
08/09/2017
NVD Last Modified:
08/28/2018