CVE-2024-27306

aiohttp vulnerable to XSS on index pages for static file handling

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. A XSS vulnerability exists on index pages for static file handling. This vulnerability is fixed in 3.9.4. We have always recommended using a reverse proxy server (e.g. nginx) for serving static files. Users following the recommendation are unaffected. Other users can disable `show_index` if unable to upgrade.

aiohttp es un framework cliente/servidor HTTP asíncrono para asyncio y Python. Existe una vulnerabilidad XSS en las páginas de índice para el manejo de archivos estáticos. Esta vulnerabilidad se solucionó en 3.9.4. Siempre hemos recomendado utilizar un servidor proxy inverso (por ejemplo, nginx) para servir archivos estáticos. Los usuarios que sigan la recomendación no se verán afectados. Otros usuarios pueden desactivar `show_index` si no pueden actualizar.

A flaw was found in aiohttp, an asynchronous HTTP client/server framework for asyncio and Python. When using "web.static(..., show_index=True)", the resulting index pages do not escape file names. If users can upload files with arbitrary filenames to the static directory, the server is vulnerable to cross-site scripting (XSS) attacks.

*Credits: N/A

CVSS Scores

GitHubv3.1 6.1

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-22 CVE Reserved
2024-04-18 CVE Published
2024-05-02 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CAPEC

References (8)

URL	Tag	Source
https://github.com/aio-libs/aiohttp/commit/28335525d1eac015a7e7584137678cbb6ff19397	X_refsource_misc
https://github.com/aio-libs/aiohttp/pull/8319	X_refsource_misc
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-7gpw-8wmc-pm8g	X_refsource_confirm
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2EXRGTN2WG7VZLUZ7WOXU5GQJKCPPHKP
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWEI6NIHZ3G7DURDZVMRK7ZEFC2BTD3U
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZIVBMPEY7WWOFMC3CWXFBRQPFECV4SW3

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-27306	2024-08-20
https://bugzilla.redhat.com/show_bug.cgi?id=2275989	2024-08-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Aio-libs Search vendor "Aio-libs"		Aiohttp Search vendor "Aio-libs" for product "Aiohttp"				< 3.9.4 Search vendor "Aio-libs" for product "Aiohttp" and version " < 3.9.4"		en		Affected