CVE-2023-28370

python-tornado: open redirect vulnerability in StaticFileHandler under certain configurations

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

Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and conduct a phishing attack by having user access a specially crafted URL.

A vulnerability was found in the python-tornado library. This flaw causes an open redirect vulnerability that allows a remote, unauthenticated attacker to redirect a user to an arbitrary website and conduct a phishing attack by having the user access a specially crafted URL.

It was discovered that Tornado incorrectly handled a certain redirect. A remote attacker could possibly use this issue to redirect a user to an arbitrary web site and conduct a phishing attack by having the user access a specially crafted URL. This issue was only addressed in Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 18.04 LTS. Ubuntu 16.04 LTS was previously addressed in USN-6159-1. It was discovered that Tornado inefficiently handled requests when parsing cookies. An attacker could possibly use this issue to increase resource utilization leading to a denial of service.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-05-11 CVE Reserved
2023-05-25 CVE Published
2025-01-16 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

CAPEC

References (4)

URL	Tag	Source
https://github.com/tornadoweb/tornado/releases/tag/v6.3.2	Product
https://jvn.jp/en/jp/JVN45127776	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-28370	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=2210199	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tornadoweb Search vendor "Tornadoweb"		Tornado Search vendor "Tornadoweb" for product "Tornado"				< 6.3.2 Search vendor "Tornadoweb" for product "Tornado" and version " < 6.3.2"		-		Affected