CVE-2020-7637

CVSS V2 Medium 5 CVSS V3 Medium 5.3

Description

class-transformer before 0.3.1 allow attackers to perform Prototype Pollution. The classToPlainFromExist function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

Overview

CVE ID
CVE-2020-7637

Assigner
report@snyk.io

Vulnerability Status
Analyzed

Published Version
2020-04-06T13:15:12

Last Modified Date
2022-12-02T19:58:13

Weakness Enumerations

CWE	URL
CWE-915	http://cwe.mitre.org/data/definitions/915.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:class-transformer_project:class-transformer::::::node.js::*	1	OR		0.3.1

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

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:L/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
5.3

Base Severity
MEDIUM

Exploitability Score
3.9

Impact Score
1.4

References

Reference URL	Reference Tags
https://snyk.io/vuln/SNYK-JS-CLASSTRANSFORMER-564431	Exploit Third Party Advisory
https://github.com/typestack/class-transformer/commit/8f04eb9db02de708f1a20f6f2d2bb309b2fed01e	Patch Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-7637
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7637

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:26:01				Added to TrackCVE
2022-12-04 13:57:11	2020-04-06T13:15Z	2020-04-06T13:15:12	CVE Published Date	updated
2022-12-04 13:57:11		2022-12-02T19:58:13	CVE Modified Date	updated
2022-12-04 13:57:11		Analyzed	Vulnerability Status	updated