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Vulnerability Details : CVE-2020-11077

In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. If the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client. This is a similar but different vulnerability from CVE-2020-11076. The problem has been fixed in Puma 3.12.6 and Puma 4.3.5.
Publish Date : 2020-05-22 Last Update Date : 2020-10-07
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 444

- Products Affected By CVE-2020-11077

# Product Type Vendor Product Version Update Edition Language
1 Application Puma Puma * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Puma Puma 1

- References For CVE-2020-11077

https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
SUSE openSUSE-SU-2020:0990
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
SUSE openSUSE-SU-2020:1001
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/
FEDORA FEDORA-2020-fe354f24e8
https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
MLIST [debian-lts-announce] 20201007 [SECURITY] [DLA 2398-1] puma security update

- Metasploit Modules Related To CVE-2020-11077

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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