CVE-2018-8956
CVSS V2 Medium 5
CVSS V3 Medium 5.3
Description
ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.
Overview
- CVE ID
- CVE-2018-8956
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2020-05-06T19:15:12
- Last Modified Date
- 2020-07-19T15:15:09
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ntp:ntp:4.2.8:p10:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ntp:ntp:4.2.8:p11:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ntp:ntp:4.2.8:p12:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ntp:ntp:4.2.8:p13:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- LOW
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| http://www.ntp.org/ | Vendor Advisory |
| https://tools.ietf.org/html/rfc5905 | Third Party Advisory |
| https://nikhiltripathi.in/NTP_attack.pdf | Third Party Advisory |
| https://arxiv.org/abs/2005.01783 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200518-0006/ | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-8956 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8956 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:40:33 | Added to TrackCVE | |||
| 2022-12-04 16:12:50 | 2020-05-06T19:15Z | 2020-05-06T19:15:12 | CVE Published Date | updated |
| 2022-12-04 16:12:50 | 2020-07-19T15:15:09 | CVE Modified Date | updated | |
| 2022-12-04 16:12:50 | Modified | Vulnerability Status | updated |