Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-11077 |
CWE-ID | CWE-444 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Puma Server applications / Web servers |
Vendor | Evan Phoenix |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU28304
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-11077
CWE-ID:
CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform HTTP request smuggling attack.
The vulnerability exists due to improper input validation. A remote attacker can send a specially crafted HTTP request and perform HTTP request smuggling attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPuma: 3.0.0 - 4.3.4
External linkshttp://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
http://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
http://snyk.io/vuln/SNYK-RUBY-PUMA-570206
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.