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MitreCVE-2019-18678

HistoryNov 26, 2019 - 5:15 p.m.

CVE-2019-18678

2019-11-2617:15:12

CWE-444

mitre

web.nvd.nist.gov

298

cve-2019-18678

squid

http request smuggling

vulnerability

cache corruption

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

6.8

Confidence

Low

EPSS

0.007

Percentile

81.0%

JSON

An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon.

Affected configurations

Nvd

Node

squid-cachesquidRange3.0–3.5.28

squid-cachesquidRange4.0–4.8

Node

canonicalubuntu_linuxMatch16.04lts

canonicalubuntu_linuxMatch18.04lts

canonicalubuntu_linuxMatch19.04

canonicalubuntu_linuxMatch19.10

Node

debiandebian_linuxMatch8.0

fedoraprojectfedoraMatch30

fedoraprojectfedoraMatch31

VendorProductVersionCPE
squid-cachesquid*cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
canonicalubuntu_linux16.04cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonicalubuntu_linux18.04cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonicalubuntu_linux19.04cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
canonicalubuntu_linux19.10cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
fedoraprojectfedora30cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
fedoraprojectfedora31cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
squid-cache	squid	*	cpe:2.3:a:squid-cache:squid::::::::
canonical	ubuntu_linux	16.04	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
canonical	ubuntu_linux	18.04	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
canonical	ubuntu_linux	19.04	cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
canonical	ubuntu_linux	19.10	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
fedoraproject	fedora	30	cpe:2.3:o:fedoraproject:fedora:30:::::::*
fedoraproject	fedora	31	cpe:2.3:o:fedoraproject:fedora:31:::::::*