Debian dla-4041 : python-aiohttp-doc - security update

medium Nessus Plugin ID 214900

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4041 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4041-1 [email protected] https://www.debian.org/lts/security/ Jochen Sprickerhof February 03, 2025 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : python-aiohttp Version : 3.7.4-1+deb11u1 CVE ID : CVE-2023-47627 CVE-2023-47641 CVE-2023-49081 CVE-2023-49082 CVE-2024-23334 CVE-2024-23829 CVE-2024-27306 CVE-2024-30251 CVE-2024-52304 Debian Bug :

Several issues have been found in aiohttp, an asynchronous HTTP client/server framework for asyncio and Python. Those issues are related to the HTTP parser, link traversal and XSS on the index pages.

CVE-2023-47627

The HTTP parser in AIOHTTP has numerous problems with header parsing, which could lead to request smuggling. This parser is only used when AIOHTTP_NO_EXTENSIONS is enabled (or not using a prebuilt wheel).

CVE-2023-47641

Affected versions of aiohttp have a security vulnerability regarding the inconsistent interpretation of the http protocol. HTTP/1.1 is a persistent protocol, if both Content-Length(CL) and Transfer-Encoding(TE) header values are present it can lead to incorrect interpretation of two entities that parse the HTTP and we can poison other sockets with this incorrect interpretation. A possible Proof-of-Concept (POC) would be a configuration with a reverse proxy(frontend) that accepts both CL and TE headers and aiohttp as backend. As aiohttp parses anything with chunked, we can pass a chunked123 as TE, the frontend entity will ignore this header and will parse Content-Length. The impact of this vulnerability is that it is possible to bypass any proxy rule, poisoning sockets to other users like passing Authentication Headers, also if it is present an Open Redirect an attacker could combine it to redirect random users to another website and log the request.

CVE-2023-49081

Improper validation made it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or create a new HTTP request if the attacker controls the HTTP version. The vulnerability only occurs if the attacker can control the HTTP version of the request.

CVE-2023-49082

Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling).

CVE-2024-23334

When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files.
Additionally, the option 'follow_symlinks' can be used to determine whether to follow symbolic links outside the static root directory.
When 'follow_symlinks' is set to True, there is no validation to check if reading a file is within the root directory. This can lead to directory traversal vulnerabilities, resulting in unauthorized access to arbitrary files on the system, even when symlinks are not present. Disabling follow_symlinks and using a reverse proxy are encouraged mitigations.

CVE-2024-23829

Security-sensitive parts of the Python HTTP parser retained minor differences in allowable character sets, that must trigger error handling to robustly match frame boundaries of proxies in order to protect against injection of additional requests. Additionally, validation could trigger exceptions that were not handled consistently with processing of other malformed input. Being more lenient than internet standards require could, depending on deployment environment, assist in request smuggling. The unhandled exception could cause excessive resource consumption on the application server and/or its logging facilities.

CVE-2024-27306

A XSS vulnerability exists on index pages for static file handling.

CVE-2024-30251

In affected versions an attacker can send a specially crafted POST (multipart/form-data) request. When the aiohttp server processes it, the server will enter an infinite loop and be unable to process any further requests. An attacker can stop the application from serving requests after sending a single request.

CVE-2024-52304

The Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e.
without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections.

For Debian 11 bullseye, these problems have been fixed in version 3.7.4-1+deb11u1.

We recommend that you upgrade your python-aiohttp packages.

For the detailed security status of python-aiohttp please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-aiohttp

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the python-aiohttp-doc packages.

Plugin Details

Severity: Medium

ID: 214900

File Name: debian_DLA-4041.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/3/2025

Updated: 2/3/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2024-23334

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 2.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2024-52304

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:python-aiohttp-doc, p-cpe:/a:debian:debian_linux:python3-aiohttp-dbg, p-cpe:/a:debian:debian_linux:python3-aiohttp, cpe:/o:debian:debian_linux:11.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/3/2025

Vulnerability Publication Date: 11/14/2023

Reference Information

CVE: CVE-2023-47627, CVE-2023-47641, CVE-2023-49081, CVE-2023-49082, CVE-2024-23334, CVE-2024-23829, CVE-2024-27306, CVE-2024-30251, CVE-2024-52304

Detections

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