CVE-2023-30798

MultipartParser DOS with too many fields or files in Starlette Framework

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

There MultipartParser usage in Encode's Starlette python framework before versions 0.25.0 allows an unauthenticated and remote attacker to specify any number of form fields or files which can cause excessive memory usage resulting in denial of service of the HTTP service.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-04-18 CVE Reserved
2023-04-21 CVE Published
2024-08-02 CVE Updated
2024-10-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

CAPEC-469: HTTP DoS

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/encode/starlette/commit/8c74c2c8dba7030154f8af18e016136bea1938fa	2023-04-28
https://vulncheck.com/advisories/starlette-multipartparser-dos	2023-04-28

URL	Date	SRC
https://github.com/encode/starlette/security/advisories/GHSA-74m5-2c7w-9w3x	2023-04-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Encode Search vendor "Encode"		Starlette Search vendor "Encode" for product "Starlette"				< 0.25.0 Search vendor "Encode" for product "Starlette" and version " < 0.25.0"		python		Affected