CVE-2021-39187 : Parse Server is an open source backend that can be deployed to any infrastructur

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to version 4.10.3, Parse Server crashes when if a query request contains an invalid value for the `explain` option. This is due to a bug in the MongoDB Node.js driver which throws an exception that Parse Server cannot catch. There is a patch for this issue in version 4.10.3. No workarounds aside from upgrading are known to exist.

Published 2021-09-02 16:15:08

Updated 2022-08-05 10:51:22

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2021-39187

Parseplatform » Parse-server » For Node.js
Versions before (<) 4.10.3
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-39187

EPSS FAQ

0.17%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 54 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39187

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-39187

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Secondary)
CWE-755 Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-39187

https://jira.mongodb.org/browse/NODE-3463

[NODE-3463] Cannot catch exception with useUnifiedTopology - MongoDB Jira
Patch;Third Party Advisory
https://github.com/parse-community/parse-server/security/advisories/GHSA-xqp8-w826-hh6x

Server crashes with invalid explain query parameter · Advisory · parse-community/parse-server · GitHub
Third Party Advisory
https://github.com/parse-community/parse-server/commit/308668c89474223e2448be92d6823b52c1c313ec

Merge pull request from GHSA-xqp8-w826-hh6x · parse-community/parse-server@308668c · GitHub
Patch;Third Party Advisory
https://github.com/parse-community/parse-server/releases/tag/4.10.3

Release 4.10.3 · parse-community/parse-server · GitHub
Third Party Advisory

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Vulnerability Details : CVE-2021-39187

Products affected by CVE-2021-39187

Exploit prediction scoring system (EPSS) score for CVE-2021-39187

CVSS scores for CVE-2021-39187

CWE ids for CVE-2021-39187

References for CVE-2021-39187