BusyBox NTP Packet networking/ntpd.c recv_and_process_client_pkt resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.4 | $0-$5k | 0.00 |
A vulnerability was found in BusyBox (the affected version is unknown). It has been classified as critical. This affects the function recv_and_process_client_pkt
of the file networking/ntpd.c of the component NTP Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:
The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a communication loop.
The bug was discovered 12/22/2016. The weakness was presented 12/09/2016 by Miroslav Lichvar (Website). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-6301 since 07/26/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 96236 (GLSA-201701-05 : BusyBox: Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.
It is possible to mitigate the weakness by firewalling udp/123 (ntp). A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (96236).
Product
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.4
VulDB Base Score: 7.5
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 96236
Nessus Name: GLSA-201701-05 : BusyBox: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: FirewallStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.busybox.net
Firewalling: 🔍
Timeline
07/26/2016 🔍08/03/2016 🔍
12/09/2016 🔍
12/09/2016 🔍
12/10/2016 🔍
12/22/2016 🔍
01/01/2017 🔍
01/03/2017 🔍
10/05/2022 🔍
Sources
Advisory: 153278Researcher: Miroslav Lichvar
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-6301 (🔍)
SecurityFocus: 92277 - BusyBox 'networking/ntpd.c' Remote Denial of Service Vulnerability
Entry
Created: 12/10/2016 13:38Updated: 10/05/2022 09:28
Changes: 12/10/2016 13:38 (59), 06/22/2019 17:12 (15), 10/05/2022 09:28 (4)
Complete: 🔍
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