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MitreCVE-2021-41611

HistoryOct 18, 2021 - 9:15 a.m.

CVE-2021-41611

2021-10-1809:15:08

CWE-295

mitre

web.nvd.nist.gov

102

squid

cve

security trust

remote server

certificate validation

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

7.2

Confidence

High

EPSS

0.001

Percentile

50.0%

JSON

An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients, allowing access to unsafe or hijacked services.

Affected configurations

Nvd

Node

squid-cachesquidRange5.0.6–5.2

Node

fedoraprojectfedoraMatch35

VendorProductVersionCPE
squid-cachesquid*cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*