RubySecRUBY:PUMA-2024-21647Puma HTTP Request/Response Smuggling vulnerability
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
Impact
Prior to versions 6.4.2 and 5.6.8, puma exhibited incorrect
behavior when parsing chunked transfer encoding bodies in a
way that allowed HTTP request smuggling.
Fixed versions limit the size of chunk extensions. Without this
limit, an attacker could cause unbounded resource (CPU, network
bandwidth) consumption.
Patches
The vulnerability has been fixed in 6.4.2 and 5.6.8.
Workarounds
No known workarounds.
References
- HTTP Request Smuggling
- Open an issue in Puma
- See our security policy
Affected configurations
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low