CVE-2016-6595
Docker SwarmKit Denial of Service Vulnerability
Description
The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions. NOTE: the vendor disputes this issue, stating that this sequence is not "removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability.
INFO
Published Date :
Jan. 4, 2017, 8:59 p.m.
Last Modified :
Nov. 21, 2024, 2:56 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2016-6595 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-6595.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/08/04/1 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/09/02/1 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/09/02/8 | Third Party Advisory |
| http://www.securityfocus.com/bid/92195 | |
| http://www.securitytracker.com/id/1036548 | |
| http://www.openwall.com/lists/oss-security/2016/08/04/1 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/09/02/1 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/09/02/8 | Third Party Advisory |
| http://www.securityfocus.com/bid/92195 | |
| http://www.securitytracker.com/id/1036548 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Got a bogus CVE someone got for a non-vuln? Please share here!
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-6595 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-6595 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2016/08/04/1 Added Reference http://www.openwall.com/lists/oss-security/2016/09/02/1 Added Reference http://www.openwall.com/lists/oss-security/2016/09/02/8 Added Reference http://www.securityfocus.com/bid/92195 Added Reference http://www.securitytracker.com/id/1036548 -
CVE Modified by [email protected]
Aug. 06, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value Added Tag MITRE disputed -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description ** DISPUTED ** The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions. NOTE: the vendor disputes this issue, stating that this sequence is not "removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability." The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions. NOTE: the vendor disputes this issue, stating that this sequence is not "removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability. -
CVE Modified by [email protected]
Aug. 16, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1036548 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/92195 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 05, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2016/08/04/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/08/04/1 Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2016/09/02/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/09/02/1 Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2016/09/02/8 No Types Assigned http://www.openwall.com/lists/oss-security/2016/09/02/8 Third Party Advisory Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:docker:docker:1.12.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-6595 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-6595
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.62 }} 0.14%
score
0.78698
percentile