CVE-2020-13817
published 2020-06-04CVE-2020-13817: ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting…
PriorityP342high7.4CVSS 3.1
AVNACHPRNUINSUCNIHAH
EPSS
4.07%
89.5th percentile
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | ntp | < ntp 1:4.2.8p14+dfsg-1 (bullseye) | ntp 1:4.2.8p14+dfsg-1 (bullseye) |
| debian | ntpsec | < ntp 1:4.2.8p14+dfsg-1 (bullseye) | ntp 1:4.2.8p14+dfsg-1 (bullseye) |
| fujitsu | m10-1_firmware | < xcp2410 | xcp2410 |
| fujitsu | m10-4_firmware | < xcp2410 | xcp2410 |
| fujitsu | m10-4_firmware | < xcp3110 | xcp3110 |
| fujitsu | m10-4s_firmware | < xcp2410 | xcp2410 |
| fujitsu | m10-4s_firmware | < xcp3110 | xcp3110 |
| fujitsu | m12-1_firmware | < xcp2410 | xcp2410 |
| fujitsu | m12-1_firmware | < xcp3110 | xcp3110 |
| fujitsu | m12-2_firmware | < xcp2410 | xcp2410 |
| fujitsu | m12-2_firmware | < xcp3110 | xcp3110 |
| fujitsu | m12-2s_firmware | < xcp2410 | xcp2410 |
| fujitsu | m12-2s_firmware | < xcp3110 | xcp3110 |
| ntp | ntp | < 4.2.8 | 4.2.8 |
| ntp | ntp | — | — |
| ntp | ntp | >= 0 < 1:4.2.8p14+dfsg-1 | 1:4.2.8p14+dfsg-1 |
| ntp | ntp | >= 4.3.0 < 4.3.100 | 4.3.100 |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
nvdv3.05.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:P
osv7.4HIGH
vendor_debian7.4LOW
vendor_oracle7.4HIGH
vendor_redhat7.4HIGH
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CISA ICS
Hitachi Energy AFF66x
cisa_ics·2023-08-22·CVSS 7.4
[HIGH] Hitachi Energy AFF66x
ICS Advisory
##
Hitachi Energy AFF66x
Release DateAugust 22, 2023
Alert CodeICSA-23-234-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.6
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Hitachi Energy
- Equipment: AFF66x
- Vulnerabilities: Cross-site Scripting, Use of Insufficiently Random Values, Origin Validation Error, Integer Overflow or Wraparound, Uncontrolled Resource Consumption, NULL Pointer Dereference
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to compromise availability, integrity, and confidentiality of the targeted devices.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
Hitachi Energy reports these vulnerabilities affect the following AFF660/665 products:
- AFF660/665
Oracle
Oracle Oracle Systems Risk Matrix: XCP Firmware (NTP) — CVE-2020-13817
vendor_oracle·2022-01-15·CVSS 7.4
CVE-2020-13817 [HIGH] Oracle Oracle Systems Risk Matrix: XCP Firmware (NTP) — CVE-2020-13817
Oracle Oracle Systems Risk Matrix: XCP Firmware (NTP) vulnerability
CVE: CVE-2020-13817
CVSS: 7.4
Protocol: NTP
Remote exploit: Yes
Affected versions: Network
Advisory: cpujan2022 (JAN 2022)
Red Hat
ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
vendor_redhat·2020-03-03·CVSS 7.4
CVE-2020-13817 [HIGH] CWE-358 ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
A high-performance ntpd instance that gets its time from unauthenticated IPv4 time sources may be vulnerable to an off-path attacker who can query time from the victim's ntpd instance. An attacker who can send a large number of packets with the spoofed IPv4 address of the upstream server can use this flaw to modify the victim's clock by a limited amo
Debian
CVE-2020-13817: ntp - ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to ...
vendor_debian·2020·CVSS 7.4
CVE-2020-13817 [HIGH] CVE-2020-13817: ntp - ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to ...
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
Scope: local
bullseye: resolved (fixed in 1:4.2.8p14+dfsg-1)
GHSA
GHSA-fx6x-7xgx-2wwp: ntpd in ntp before 4
ghsa_unreviewed·2022-05-24
CVE-2020-13817 [MEDIUM] CWE-20 GHSA-fx6x-7xgx-2wwp: ntpd in ntp before 4
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
OSV
CVE-2020-13817: ntpd in ntp before 4
osv·2020-06-04·CVSS 7.4
CVE-2020-13817 [HIGH] CVE-2020-13817: ntpd in ntp before 4
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2023-50782 python-cryptography: Bleichenbacher timing oracle attack against RSA decryption - incomplete fix for CVE-2020-25659
bugzilla·2023-12-13·CVSS 5.9
CVE-2023-50782 [MEDIUM] CVE-2023-50782 python-cryptography: Bleichenbacher timing oracle attack against RSA decryption - incomplete fix for CVE-2020-25659
CVE-2023-50782 python-cryptography: Bleichenbacher timing oracle attack against RSA decryption - incomplete fix for CVE-2020-25659
Description:
The fix for CVE-2020-25659 is not addressing the leakage in the RSA
decryption. Because of the API design, the fix is generally not
believed to be possible to be fully addressed. The issue can be
mitigated by using a cryptographic backed that implements implicit
rejection (Marvin workaround). Only applications that use RSA decryption
with PKCS#1 v1.5 padding are affected.
Implicit rejection in RHEL has shipped in 9.3.0. Will ship in 9.2.eus,
8.6.eus, 8.8.eus, and 8.9.z. No other releases are planned
References:
https://github.com/pyca/cryptography/issues/9785
https://people.redhat.com/~hkario/marvin/
https://github.com/openssl/openssl/pull/13817
Bugzilla
CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
bugzilla·2020-03-09·CVSS 7.4
CVE-2020-13817 [HIGH] CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in time change or DoS
ntpd instance that gets its time from unauthenticated IPv4 time sources may be vulnerable to an off-path attacker who can query time from the victim's ntpd instance. After 8 or more successful attacks in a row, the attacker can either modify the victim's clock by a limited amount or cause ntpd to exit.
Upstream Reference:
http://support.ntp.org/bin/view/Main/NtpBug3596
Discussion:
Created ntp tracking bugs for this issue:
Affects: fedora-all [bug 1811628]
---
External References:
http://support.ntp.org/bin/view/Main/NtpBug3596
---
Mitigation:
1. Have enough trustworthy sources of time.
2. If you are serving time to a possibly hostile network, have your system get its time fr
Bugzilla
CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in timechange or DoS [fedora-all]
bugzilla·2020-03-09·CVSS 7.4
CVE-2020-13817 [HIGH] CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in timechange or DoS [fedora-all]
CVE-2020-13817 ntp: ntpd using highly predictable transmit timestamps could result in timechange or DoS [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-all.
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 is
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlhttp://support.ntp.org/bin/view/Main/NtpBug3596https://bugs.ntp.org/show_bug.cgi?id=3596https://security.gentoo.org/glsa/202007-12https://security.netapp.com/advisory/ntap-20200625-0004/https://www.oracle.com/security-alerts/cpujan2022.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlhttp://support.ntp.org/bin/view/Main/NtpBug3596https://bugs.ntp.org/show_bug.cgi?id=3596https://security.gentoo.org/glsa/202007-12https://security.netapp.com/advisory/ntap-20200625-0004/https://www.oracle.com/security-alerts/cpujan2022.html
2020-06-04
Published