Vulnerability identifier: #VU81803
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-749
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Apache Tomcat
Server applications /
Web servers
Vendor: Apache Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to Tomcat's internal fork of a Commons FileUpload included an unreleased, in progress refactoring that exposed a potential denial of service on Windows. A remote attacker can perform a denial of service attack by uploading multiple files to the server that are not removed.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Apache Tomcat: 9.0.70 - 9.0.80, 8.5.85 - 8.5.93
External links
http://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82
http://github.com/apache/tomcat/commit/c99ffc30e95ddc4daede564d08cb5ea2b9a9da65
http://github.com/apache/tomcat/commit/43b882b8a577684498ab9b8851aa0427216784f7
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.