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MitreCVE-2021-33318

HistoryMay 16, 2022 - 4:15 p.m.

CVE-2021-33318

2022-05-1616:15:07

CWE-704

mitre

web.nvd.nist.gov

cve-2021-33318

input validation

.net

watsonwebserver

ipmatcher

joel christner

vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

62.1%

JSON

An Input Validation Vulnerability exists in Joel Christner .NET C# packages WatsonWebserver, IpMatcher 1.0.4.1 and below (IpMatcher) and 4.1.3 and below (WatsonWebserver) due to insufficient validation of input IP addresses and netmasks against the internal Matcher list of IP addresses and subnets.

Affected configurations

Nvd

Node

ipmatcher_projectipmatcherRange≤1.0.4.1

watsonwebserver_projectwatsonwebserverRange≤4.1.3

VendorProductVersionCPE
ipmatcher_projectipmatcher*cpe:2.3:a:ipmatcher_project:ipmatcher:*:*:*:*:*:*:*:*
watsonwebserver_projectwatsonwebserver*cpe:2.3:a:watsonwebserver_project:watsonwebserver:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ipmatcher_project	ipmatcher	*	cpe:2.3:a:ipmatcher_project:ipmatcher::::::::
watsonwebserver_project	watsonwebserver	*	cpe:2.3:a:watsonwebserver_project:watsonwebserver::::::::

References

github.com/jchristn/IpMatcher

github.com/jchristn/IpMatcher/commit/81d77c2f33aa912dbd032b34b9e184fc6e041d89

github.com/jchristn/WatsonWebserver

github.com/kaoudis/advisories/blob/main/0-2021.md

Social References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

62.1%

JSON

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