Vulnerability Report

CVE-2020-11076

Title: Puma

Other

Proof Of Concept

PoC Available for CVE-2020-11076

CWE Category CWE-444
Published Date May 22, 2020
Modified Date Nov 21, 2024
Exploit Status Available
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
1.78%

Vulnerability Summary

CVE-2020-11076: 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.

Impacted Vendors

P
psywerks 1
P
puma 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/ http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-11076 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/dentarg/cougar
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.