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githubGitHub Advisory DatabaseGHSA-WXMH-65F7-JCVW
HistoryApr 19, 2023 - 6:25 p.m.

Improper header name validation in guzzlehttp/psr7

2023-04-1918:25:53
CWE-436
GitHub Advisory Database
github.com
83
improper header parsing
newline injection
vulnerability patch
rfc7230
psr7

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

0.003 Low

EPSS

Percentile

65.5%

Impact

Improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n.

Patches

The issue is patched in 1.9.1 and 2.4.5.

Workarounds

There are no known workarounds.

References

Affected configurations

Vulners
Node
guzzlehttppsr7Range<2.4.5
OR
guzzlehttppsr7Range<1.9.1

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

0.003 Low

EPSS

Percentile

65.5%