5.9
MEDIUM
CVE-2023-42794
Apache Tomcat Denial of Service via Unreleased Refactoring in Commons FileUpload.
Description

Incomplete Cleanup vulnerability in Apache Tomcat. The internal fork of Commons FileUpload packaged with Apache Tomcat 9.0.70 through 9.0.80 and 8.5.85 through 8.5.93 included an unreleased, in progress refactoring that exposed a potential denial of service on Windows if a web application opened a stream for an uploaded file but failed to close the stream. The file would never be deleted from disk creating the possibility of an eventual denial of service due to the disk being full. Users are recommended to upgrade to version 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.

INFO

Published Date :

Oct. 10, 2023, 6:15 p.m.

Last Modified :

Nov. 21, 2024, 8:23 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Public PoC/Exploit Available at Github

CVE-2023-42794 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-42794 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apache tomcat
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-42794.

URL Resource
http://www.openwall.com/lists/oss-security/2023/10/10/8 Mailing List Third Party Advisory
https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/10/10/8 Mailing List Third Party Advisory
https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 7 months ago
1 stars 0 fork 0 watcher
Born at : Jan. 24, 2024, 4:31 p.m. This repo has been linked 83 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-42794 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-42794 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/10/10/8
    Added Reference https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Dec. 11, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Initial Analysis by [email protected]

    Oct. 16, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/10/8 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/10/8 Mailing List, Third Party Advisory
    Changed Reference Type https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 No Types Assigned https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 8.5.85 up to (excluding) 8.5.94 *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 9.0.70 up to (excluding) 9.0.81
  • CVE Modified by [email protected]

    Oct. 10, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/10/10/8 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-42794 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-42794 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.02%

score

0.36247

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability