CVE-2024-23826

Uploading an image with a specific filename causes a server-side DoS

Severity Score

5.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

spbu_se_site is the website of the Department of System Programming of St. Petersburg State University. Before 2024.01.29, when uploading an avatar image, an authenticated user may intentionally use a large Unicode filename which would lead to a server-side denial of service under Windows. This is due to no limitation of the length of the filename and the costly use of the Unicode normalization with the form NFKD on Windows OS. This vulnerability was fixed in the 2024.01.29 release.

spbu_se_site es el sitio web del Departamento de Programación de Sistemas de la Universidad Estatal de San Petersburgo. Antes del 29/01/2024, al cargar una imagen de avatar, un usuario autenticado puede utilizar intencionalmente un nombre de archivo Unicode grande, lo que provocaría una denegación de servicio del lado del servidor en Windows. Esto se debe a la falta de limitación de la longitud del nombre del archivo y al costoso uso de la normalización Unicode con el formato NFKD en el sistema operativo Windows. Esta vulnerabilidad se solucionó en la versión 2024.01.29.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2024-01-22 CVE Reserved
2024-01-29 CVE Published
2024-02-09 EPSS Updated
2024-08-01 CVE Updated
2024-08-01 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/spbu-se/spbu_se_site/security/advisories/GHSA-5vfc-v7hg-pvwm	2024-08-01

URL	Date	SRC
https://github.com/spbu-se/spbu_se_site/commit/5ad623eb0405260763046343c5785bc588d8a57d	2024-02-08

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Se.math.spbu Search vendor "Se.math.spbu"		Spbu Se Site Search vendor "Se.math.spbu" for product "Spbu Se Site"				< 2024.01.29 Search vendor "Se.math.spbu" for product "Spbu Se Site" and version " < 2024.01.29"		-		Affected