CVE-2021-32040
Large aggregation pipelines with a specific stage can crash mongod under default configuration
Description
It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash.
INFO
Published Date :
April 12, 2022, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 6:06 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- There is no known solution at this time.
Public PoC/Exploit Available at Github
CVE-2021-32040 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-2021-32040.
| URL | Resource |
|---|---|
| https://jira.mongodb.org/browse/SERVER-58203 | Issue Tracking Patch Vendor Advisory |
| https://jira.mongodb.org/browse/SERVER-59299 | Issue Tracking Patch Vendor Advisory |
| https://jira.mongodb.org/browse/SERVER-60218 | Issue Tracking Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220609-0005/ | Third Party Advisory |
| https://jira.mongodb.org/browse/SERVER-58203 | Issue Tracking Patch Vendor Advisory |
| https://jira.mongodb.org/browse/SERVER-59299 | Issue Tracking Patch Vendor Advisory |
| https://jira.mongodb.org/browse/SERVER-60218 | Issue Tracking Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220609-0005/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32040 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-2021-32040
weaknesses.
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).
Unifi Controller (DB included)
Dockerfile Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32040 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32040 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 https://jira.mongodb.org/browse/SERVER-58203 Added Reference https://jira.mongodb.org/browse/SERVER-59299 Added Reference https://jira.mongodb.org/browse/SERVER-60218 Added Reference https://security.netapp.com/advisory/ntap-20220609-0005/ -
CVE Modified by [email protected]
Sep. 16, 2024
Action Type Old Value New Value Changed Description It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash. It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash. -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 23, 2024
Action Type Old Value New Value Changed Description It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB versions prior to 5.0.4, 4.4.11, 4.2.16. It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash. -
Modified Analysis by [email protected]
Feb. 03, 2023
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220609-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20220609-0005/ Third Party Advisory -
CVE Modified by [email protected]
Jun. 09, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220609-0005/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 20, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://jira.mongodb.org/browse/SERVER-58203 No Types Assigned https://jira.mongodb.org/browse/SERVER-58203 Issue Tracking, Patch, Vendor Advisory Changed Reference Type https://jira.mongodb.org/browse/SERVER-59299 No Types Assigned https://jira.mongodb.org/browse/SERVER-59299 Issue Tracking, Patch, Vendor Advisory Changed Reference Type https://jira.mongodb.org/browse/SERVER-60218 No Types Assigned https://jira.mongodb.org/browse/SERVER-60218 Issue Tracking, Patch, Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.2.16 *cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.4.11 *cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.4
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.62 }} 0.02%
score
0.68997
percentile