CVE-2016-1550
published 2017-01-06CVE-2016-1550: An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92…
PriorityP433medium5.3CVSS 3.0
AVNACLPRNUINSUCLINAN
EPSS
3.63%
88.3th percentile
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | ntp | < ntp 1:4.2.8p7+dfsg-1 (bullseye) | ntp 1:4.2.8p7+dfsg-1 (bullseye) |
| ntp | ntp | — | — |
| ntp | ntp | >= 0 < 1:4.2.8p7+dfsg-1 | 1:4.2.8p7+dfsg-1 |
| ntp | ntp | >= 0 < 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 |
| ntp | ntp | >= 0 < 1:4.2.8p4+dfsg-3ubuntu5.3 | 1:4.2.8p4+dfsg-3ubuntu5.3 |
| ntp_project | ntp | — | — |
| ntp_project | ntp | — | — |
| ntpsec_project | ntpsec | — | — |
CVSS provenance
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_cisco5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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CISA ICS
Siemens SIMATIC NET CP 443-1 OPC UA
cisa_ics·2021-06-08·CVSS 5.9
[MEDIUM] Siemens SIMATIC NET CP 443-1 OPC UA
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens SIMATIC NET CP 443-1 OPC UA
Last RevisedJune 08, 2021
Alert CodeICSA-21-159-11
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC NET CP 443-1 OPC UA
- Vulnerabilities: Improper Input Validation, Improper Restriction of Operations within the Bounds of a Memory Buffer, Incorrect Calculation, Classic Buffer Overflow, Improper Authentication, Race Condition, Data Processing Errors, Exposure of Sensitive Information to an Unauthorized Actor, Out-of-bounds Read
## 2. RISK EVALUATION
Succes
CISA ICS
Siemens TIM 4R-IE Devices
cisa_ics·2021-04-13·CVSS 7.5
[HIGH] Siemens TIM 4R-IE Devices
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens TIM 4R-IE Devices
Last RevisedApril 13, 2021
Alert CodeICSA-21-103-11
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: TIM 4R-IE
- Vulnerabilities: Incorrect Type Conversion or Cast, Improper Input Validation, Improper Authentication, Security Features, Null Pointer Dereference, Data Processing Errors, Exposure of Sensitive Information to an Unauthorized Actor, Race Condition
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could compromise the confidentiality, integri
Ubuntu
NTP vulnerabilities
vendor_ubuntu·2016-10-05·CVSS 6.5
CVE-2015-7973 [MEDIUM] NTP vulnerabilities
Title: NTP vulnerabilities
Summary: Several security issues were fixed in NTP.
Aanchal Malhotra discovered that NTP incorrectly handled authenticated
broadcast mode. A remote attacker could use this issue to perform a replay
attack. (CVE-2015-7973)
Matt Street discovered that NTP incorrectly verified peer associations of
symmetric keys. A remote attacker could use this issue to perform an
impersonation attack. (CVE-2015-7974)
Jonathan Gardner discovered that the NTP ntpq utility incorrectly handled
memory. An attacker could possibly use this issue to cause ntpq to crash,
resulting in a denial of service. This issue only affected Ubuntu 16.04
LTS. (CVE-2015-7975)
Jonathan Gardner discovered that the NTP ntpq utility incorrectly handled
dangerous characters in filenames. An attacker cou
BSD
FreeBSD-SA-16:16.ntp: Multiple vulnerabilities of ntp
bsd_advisories·2016-04-29·CVSS 5.3
CVE-2016-1547 [MEDIUM] FreeBSD-SA-16:16.ntp: Multiple vulnerabilities of ntp
FreeBSD-SA-16:16.ntp Security Advisory
The FreeBSD Project
Topic: Multiple vulnerabilities of ntp
Category: contrib
Module: ntp
Announced: 2016-04-29
Credits: Network Time Foundation and various contributors listed below
Affects: All supported versions of FreeBSD.
Corrected: 2016-04-27 15:24:33 UTC (stable/10, 10.3-STABLE)
2016-04-29 08:02:31 UTC (releng/10.3, 10.3-RELEASE-p1)
2016-04-29 08:02:31 UTC (releng/10.2, 10.2-RELEASE-p15)
2016-04-29 08:02:31 UTC (releng/10.1, 10.1-RELEASE-p32)
2016-04-27 15:25:18 UTC (stable/9, 9.3-STABLE)
2016-04-29 08:02:31 UTC (releng/9.3, 9.3-RELEASE-p40)
CVE Name: CVE-2016-1547, CVE-2016-1548, CVE-2016-1549, CVE-2016-1550,
CVE-2016-1551, CVE-2016-2516, CVE-2016-2517, CVE-2016-2518,
CVE-2016-2519
For general information regarding FreeBSD Security Advisorie
Cisco
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
vendor_cisco·2016-04-28·CVSS 5.3
CVE-2015-7704 [MEDIUM] Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
Multiple Cisco products incorporate a version of the Network Time Protocol daemon (ntpd) package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or modify the time being advertised by a device acting as a Network Time Protocol (NTP) server.
On April 26, 2016, the NTP Consortium of the Network Time Foundation released a security notice that details 11 issues regarding DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may allow an attacker to shift a system's time. Two of the vulnerabilities disclosed in the NTP security notice address issues that
Red Hat
ntp: libntp message digest disclosure
vendor_redhat·2016-04-26·CVSS 5.3
CVE-2016-1550 [MEDIUM] ntp: libntp message digest disclosure
ntp: libntp message digest disclosure
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
A flaw was found in the way NTP's libntp performed message authentication. An attacker able to observe the timing of the comparison function used in packet authentication could potentially use this flaw to recover the message digest.
Package: ntp (Red Hat Enterprise Linux 5) - Will not fix
Debian
CVE-2016-1550: ntp - An exploitable vulnerability exists in the message authentication functionality ...
vendor_debian·2016·CVSS 5.3
CVE-2016-1550 [MEDIUM] CVE-2016-1550: ntp - An exploitable vulnerability exists in the message authentication functionality ...
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
Scope: local
bullseye: resolved (fixed in 1:4.2.8p7+dfsg-1)
Cisco
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
vendor_cisco
CVE-2016-1550 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
CVE-2016-1550: Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
Multiple Cisco products incorporate a version of the Network Time Protocol daemon (ntpd) package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or modify the time being advertised by a device acting as a Network Time Protocol (NTP) server. On April 26, 2016, the NTP Consortium of the Network Time Foundation released a security notice that
Bug IDs: CSCuz44082, CSCuz44085, CSCuz44088, CSCuz44082, CSCuz44085
GHSA
GHSA-vg2m-563f-34vv: An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4
ghsa_unreviewed·2022-05-13
CVE-2016-1550 [MEDIUM] CWE-200 GHSA-vg2m-563f-34vv: An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
OSV
CVE-2016-1550: An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4
osv·2017-01-06·CVSS 5.3
CVE-2016-1550 [MEDIUM] CVE-2016-1550: An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
OSV
ntp vulnerabilities
osv·2016-10-05·CVSS 6.5
CVE-2015-7973 [MEDIUM] ntp vulnerabilities
ntp vulnerabilities
Aanchal Malhotra discovered that NTP incorrectly handled authenticated
broadcast mode. A remote attacker could use this issue to perform a replay
attack. (CVE-2015-7973)
Matt Street discovered that NTP incorrectly verified peer associations of
symmetric keys. A remote attacker could use this issue to perform an
impersonation attack. (CVE-2015-7974)
Jonathan Gardner discovered that the NTP ntpq utility incorrectly handled
memory. An attacker could possibly use this issue to cause ntpq to crash,
resulting in a denial of service. This issue only affected Ubuntu 16.04
LTS. (CVE-2015-7975)
Jonathan Gardner discovered that the NTP ntpq utility incorrectly handled
dangerous characters in filenames. An attacker could possibly use this
issue to overwrite arbitrary files. (CV
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-1548 CVE-2016-1549 CVE-2016-1550 CVE-2016-2516 CVE-2016-2517 CVE-2016-2518 ntp: various flaws [fedora-all]
bugzilla·2016-05-02·CVSS 7.2
CVE-2016-1548 [HIGH] CVE-2016-1548 CVE-2016-1549 CVE-2016-1550 CVE-2016-2516 CVE-2016-2517 CVE-2016-2518 ntp: various flaws [fedora-all]
CVE-2016-1548 CVE-2016-1549 CVE-2016-1550 CVE-2016-2516 CVE-2016-2517 CVE-2016-2518 ntp: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue a
Bugzilla
CVE-2016-1550 ntp: libntp message digest disclosure
bugzilla·2016-04-28·CVSS 5.3
CVE-2016-1550 [MEDIUM] CVE-2016-1550 ntp: libntp message digest disclosure
CVE-2016-1550 ntp: libntp message digest disclosure
The follwing flaw was found in NTP:
An exploitable vulnerability exists in the message authentication functionality of Network Time Protocol libntp. An attacker can send a series of crafted messages to attempt to recover the message digest key.
Upstream bugs:
http://support.ntp.org/bin/view/Main/NtpBug2879
External References:
http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security
http://www.talosintel.com/reports/TALOS-2016-0084/
Discussion:
Created ntp tracking bugs for this issue:
Affects: fedora-all [bug 1332160]
---
ntp-4.2.6p5-40.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
---
ntp-4.2.6p5-40.fc23 has been push
Talos
Vulnerability Spotlight: Further NTPD Vulnerabilities
blogs_talos·2016-04-27·CVSS 5.3
[MEDIUM] Vulnerability Spotlight: Further NTPD Vulnerabilities
## Vulnerability Spotlight: Further NTPD Vulnerabilities
As a member of the Linux Foundation Core Infrastructure Initiative , Cisco is contributing to the CII effort by evaluating the Network Time Protocol daemon (ntpd) for security defects. We previously identified a series of vulnerabilities in the Network Time Protocol daemon; through our continued research we have identified further vulnerabilities in the software.
Since 2013, criminals have been abusing NTP packets in order to cause amplified denial of service attacks . The ubiquity of the Network Time Protocol daemon and the importance of co-ordinated time for the correct functioning of many services means that it is a tempting target for attack. Vulnerabilities that allow the time as understood by ntpd to be altered can be used by
Talos
Vulnerability Spotlight: Further NTPD Vulnerabilities
blogs_talos·2016-04-27·CVSS 5.3
[MEDIUM] Vulnerability Spotlight: Further NTPD Vulnerabilities
As a member of the Linux Foundation Core Infrastructure Initiative, Cisco is contributing to the CII effort by evaluating the Network Time Protocol daemon (ntpd) for security defects. We previously identified a series of vulnerabilities in the Network Time Protocol daemon; through our continued research we have identified further vulnerabilities in the software.
Since 2013, criminals have been abusing NTP packets in order to cause amplified denial of service attacks. The ubiquity of the Network Time Protocol daemon and the importance of co-ordinated time for the correct functioning of many services means that it is a tempting target for attack. Vulnerabilities that allow the time as understood by ntpd to be altered can be used by attackers to set the time to an arbitrary value. This allow
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlhttp://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlhttp://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1552.htmlhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpdhttp://www.debian.org/security/2016/dsa-3629http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlhttp://www.securityfocus.com/archive/1/538233/100/0/threadedhttp://www.securityfocus.com/archive/1/archive/1/538233/100/0/threadedhttp://www.securityfocus.com/bid/88261http://www.securitytracker.com/id/1035705http://www.talosintelligence.com/reports/TALOS-2016-0084/http://www.ubuntu.com/usn/USN-3096-1https://access.redhat.com/errata/RHSA-2016:1141https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdfhttps://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfhttps://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.aschttps://security.gentoo.org/glsa/201607-15https://security.netapp.com/advisory/ntap-20171004-0002/https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19https://www.debian.org/security/2016/dsa-3629https://www.kb.cert.org/vuls/id/718152https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlhttp://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlhttp://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1552.htmlhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpdhttp://www.debian.org/security/2016/dsa-3629http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlhttp://www.securityfocus.com/archive/1/538233/100/0/threadedhttp://www.securityfocus.com/archive/1/archive/1/538233/100/0/threadedhttp://www.securityfocus.com/bid/88261http://www.securitytracker.com/id/1035705http://www.talosintelligence.com/reports/TALOS-2016-0084/http://www.ubuntu.com/usn/USN-3096-1https://access.redhat.com/errata/RHSA-2016:1141https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdfhttps://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfhttps://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.aschttps://security.gentoo.org/glsa/201607-15https://security.netapp.com/advisory/ntap-20171004-0002/https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19https://www.debian.org/security/2016/dsa-3629https://www.kb.cert.org/vuls/id/718152https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084
2017-01-06
Published