CVE-2023-40175

Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling. Severity of this issue is highly dependent on the nature of the web site using puma is. This could be caused by either incorrect parsing of trailing fields in chunked transfer encoding bodies or by parsing of blank/zero-length Content-Length headers. Both issues have been addressed and this vulnerability has been fixed in versions 6.3.1 and 5.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a	Patch
https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:puma:puma::::::ruby::*
	cpe:2.3:a:puma:puma::::::ruby::*

History

No history.

Information

Published : 2023-08-18 22:15

Updated : 2023-08-24 18:48

NVD link : CVE-2023-40175

Mitre link : CVE-2023-40175

CVE.ORG link : CVE-2023-40175

JSON object : View

Products Affected

puma

puma

CWE

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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