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veracodeVeracode Vulnerability DatabaseVERACODE:41513
HistoryJul 23, 2023 - 4:52 a.m.

HTTP Request Smuggling (HRS)

2023-07-2304:52:48
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
8
http request smuggling
llhttp
software vulnerability
crlf sequence

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

0.001 Low

EPSS

Percentile

40.3%

llhttp is vulnerable to HTTP Request Smuggling (HRS). The vulnerability exists because the http.js does not properly handle the CRLF sequence, allowing an attacker to smuggle HTTP requests by submitting Line feed (LF) characters without a Carriage Return (CR).

References

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

0.001 Low

EPSS

Percentile

40.3%