CVE-2020-11076
HTTP Smuggling via Transfer-Encoding Header in Puma
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.
En Puma (RubyGem) versiones anteriores a 4.3.4 y 3.12.5, un atacante podría hacer pasar sin autorización una respuesta HTTP, mediante el uso de un encabezado de codificación transfer no válido. El problema ha sido corregido en Puma versión 3.12.5 y Puma versión 4.3.4.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-03-30 CVE Reserved
- 2020-05-22 CVE Published
- 2024-08-04 CVE Updated
- 2024-09-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 | Release Notes | |
| https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Puma Search vendor "Puma" | Puma Search vendor "Puma" for product "Puma" | >= 3.0.0 < 3.12.6 Search vendor "Puma" for product "Puma" and version " >= 3.0.0 < 3.12.6" | ruby |
Affected
| ||||||
| Puma Search vendor "Puma" | Puma Search vendor "Puma" for product "Puma" | >= 4.0.0 < 4.3.5 Search vendor "Puma" for product "Puma" and version " >= 4.0.0 < 4.3.5" | ruby |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||