Arbitrary file upload in GWTUpload
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-13128 |
| CWE-ID | CWE-434 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
GWTUpload Universal components / Libraries / Libraries used by multiple products |
| Vendor | Manuel Carrasco Moñino |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Arbitrary file upload
EUVDB-ID: #VU34383
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: CVE-2020-13128
CWE-ID:
CWE-434 - Unrestricted Upload of File with Dangerous Type
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.
MitigationInstall update from vendor's website.
Vulnerable software versionsGWTUpload: 1.0.3
External linkshttp://github.com/manolo/gwtupload/issues/33
http://logicaltrust.net/blog/2020/02/gwt-upload.html
Q & A
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.
