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NTP : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2018-12327 119 Exec Code Overflow 2018-06-20 2018-08-10
7.5
None Remote Low Not required Partial Partial Partial
Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.
2 CVE-2018-7185 20 DoS 2018-03-06 2018-10-21
5.0
None Remote Low Not required None None Partial
The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.
3 CVE-2018-7184 20 DoS 2018-03-06 2018-10-21
5.0
None Remote Low Not required None None Partial
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
4 CVE-2018-7183 119 Exec Code Overflow 2018-03-08 2018-10-21
7.5
None Remote Low Not required Partial Partial Partial
Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.
5 CVE-2018-7182 125 DoS 2018-03-06 2018-11-16
5.0
None Remote Low Not required None None Partial
The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.
6 CVE-2018-7170 19 2018-03-06 2018-10-21
3.5
None Remote Medium Single system None Partial None
ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
7 CVE-2017-6464 20 DoS 2017-03-27 2018-04-11
4.0
None Remote Low Single system None None Partial
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote attackers to cause a denial of service (ntpd crash) via a malformed mode configuration directive.
8 CVE-2017-6463 20 DoS 2017-03-27 2018-04-11
4.0
None Remote Low Single system None None Partial
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
9 CVE-2017-6462 119 Overflow 2017-03-27 2018-04-11
4.6
None Local Low Not required Partial Partial Partial
Buffer overflow in the legacy Datum Programmable Time Server (DPTS) refclock driver in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via a crafted /dev/datum device.
10 CVE-2017-6460 119 Overflow 2017-03-27 2017-10-23
6.5
None Remote Low Single system Partial Partial Partial
Stack-based buffer overflow in the reslist function in ntpq in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote servers have unspecified impact via a long flagstr variable in a restriction list response.
11 CVE-2017-6459 119 Overflow 2017-03-27 2017-10-23
2.1
None Local Low Not required None None Partial
The Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via vectors related to an argument with multiple null bytes.
12 CVE-2017-6458 119 Overflow 2017-03-27 2017-10-23
6.5
None Remote Low Single system Partial Partial Partial
Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.
13 CVE-2017-6455 94 +Priv 2017-03-27 2017-10-23
4.4
None Local Medium Not required Partial Partial Partial
NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.
14 CVE-2017-6452 119 Overflow 2017-03-27 2017-10-23
4.6
None Local Low Not required Partial Partial Partial
Stack-based buffer overflow in the Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via an application path on the command line.
15 CVE-2017-6451 787 Exec Code 2017-03-27 2017-10-23
4.6
None Local Low Not required Partial Partial Partial
The mx4200_send function in the legacy MX4200 refclock in NTP before 4.2.8p10 and 4.3.x before 4.3.94 does not properly handle the return value of the snprintf function, which allows local users to execute arbitrary code via unspecified vectors, which trigger an out-of-bounds memory write.
16 CVE-2016-9312 399 DoS 2017-01-13 2017-07-27
5.0
None Remote Low Not required None None Partial
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
17 CVE-2016-9311 476 DoS 2017-01-13 2018-08-30
7.1
None Remote Medium Not required None None Complete
ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.
18 CVE-2016-9310 400 2017-01-13 2018-05-09
6.4
None Remote Low Not required Partial None Partial
The control mode (mode 6) functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet.
19 CVE-2016-9042 20 DoS 2018-06-04 2018-08-02
4.3
None Remote Medium Not required None None Partial
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.
20 CVE-2016-7434 20 DoS 2017-01-13 2017-11-20
5.0
None Remote Low Not required None None Partial
The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a crafted mrulist query.
21 CVE-2016-7433 682 2017-01-13 2018-01-04
5.0
None Remote Low Not required None None Partial
NTP before 4.2.8p9 does not properly perform the initial sync calculations, which allows remote attackers to unspecified impact via unknown vectors, related to a "root distance that did not include the peer dispersion."
22 CVE-2016-7431 20 Bypass 2017-01-13 2018-11-08
5.0
None Remote Low Not required None Partial None
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.
23 CVE-2016-7429 18 DoS 2017-01-13 2018-01-04
4.3
None Remote Medium Not required None None Partial
NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.
24 CVE-2016-7428 400 DoS 2017-01-13 2018-11-08
3.3
None Local Network Low Not required None None Partial
ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.
25 CVE-2016-7427 400 DoS 2017-01-13 2018-11-08
3.3
None Local Network Low Not required None None Partial
The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.
26 CVE-2016-7426 399 DoS 2017-01-13 2018-01-04
4.3
None Remote Medium Not required None None Partial
NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.
27 CVE-2016-4957 20 DoS 2016-07-04 2018-10-30
5.0
None Remote Low Not required None None Partial
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.
28 CVE-2016-4956 19 DoS 2016-07-04 2018-10-30
5.0
None Remote Low Not required None None Partial
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.
29 CVE-2016-4955 362 DoS 2016-07-04 2018-10-30
2.6
None Remote High Not required None None Partial
ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
30 CVE-2016-4954 362 DoS 2016-07-04 2017-11-20
4.3
None Remote Medium Not required None None Partial
The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.
31 CVE-2016-4953 362 DoS 2016-07-04 2017-11-20
4.3
None Remote Medium Not required None None Partial
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.
32 CVE-2016-2519 119 DoS Overflow 2017-01-30 2017-11-20
4.9
None Remote High Single system None None Complete
ntpd in NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (ntpd abort) by a large request data value, which triggers the ctl_getitem function to return a NULL value.
33 CVE-2016-2518 125 2017-01-30 2018-05-17
5.0
None Remote Low Not required None None Partial
The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.
34 CVE-2016-2517 20 DoS 2017-01-30 2017-11-20
4.9
None Remote High Single system None None Complete
NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.
35 CVE-2016-2516 20 DoS 2017-01-30 2017-11-20
7.1
None Remote Medium Not required None None Complete
NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.
36 CVE-2016-1551 254 2017-01-27 2017-11-20
2.6
None Remote High Not required None Partial None
ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, any packet with a source ip address of a reference clock (127.127.1.1 for example) that reaches the receive() function will match that reference clock's peer record and will be treated as a trusted peer. Any system that lacks the typical martian packet filtering which would block these packets is in danger of having its time controlled by an attacker.
37 CVE-2016-1550 200 +Info 2017-01-06 2018-01-04
5.0
None Remote Low Not required Partial None None
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.
38 CVE-2016-1549 19 2017-01-06 2018-03-27
4.0
None Remote Low Single system None Partial None
A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.
39 CVE-2016-1548 19 2017-01-06 2018-01-04
6.4
None Remote Low Not required None Partial Partial
An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched.
40 CVE-2016-1547 20 2017-01-06 2018-01-04
5.0
None Remote Low Not required None None Partial
An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.
41 CVE-2015-8158 DoS 2017-01-30 2018-01-04
4.3
None Remote Medium Not required None None Partial
The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (infinite loop) via crafted packets with incorrect values.
42 CVE-2015-8140 284 2017-01-30 2017-11-20
5.8
None Remote Medium Not required None Partial Partial
The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.
43 CVE-2015-8139 284 2017-01-30 2017-11-20
5.0
None Remote Low Not required None Partial None
ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors.
44 CVE-2015-8138 20 Bypass 2017-01-30 2017-11-20
5.0
None Remote Low Not required None Partial None
NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to bypass the origin timestamp validation via a packet with an origin timestamp set to zero.
45 CVE-2015-7979 19 DoS 2017-01-30 2018-05-17
5.0
None Remote Low Not required None None Partial
NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client.
46 CVE-2015-7978 400 DoS 2017-01-30 2018-05-17
5.0
None Remote Low Not required None None Partial
NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.
47 CVE-2015-7977 476 DoS 2017-01-30 2018-05-17
4.3
None Remote Medium Not required None None Partial
ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command.
48 CVE-2015-7976 254 2017-01-30 2018-10-30
4.0
None Remote Low Single system None Partial None
The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.
49 CVE-2015-7975 119 DoS Overflow 2017-01-30 2017-11-20
2.1
None Local Low Not required None None Partial
The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).
50 CVE-2015-7974 254 2016-01-26 2018-01-04
2.1
None Remote High Single system None Partial None
NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
Total number of vulnerabilities : 86   Page : 1 (This Page)2
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