CVE-2021-26088

CVSS V2 Medium 5.8 CVSS V3 Critical 9.6

Description

An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets.

Overview

CVE ID
CVE-2021-26088

Assigner
psirt@fortinet.com

Vulnerability Status
Analyzed

Published Version
2021-07-12T14:15:08

Last Modified Date
2021-08-02T17:48:37

Weakness Enumerations

CWE	URL
CWE-287	http://cwe.mitre.org/data/definitions/287.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:fortinet:fortinet_single_sign-on::::::::	1	OR		6.4.6
cpe:2.3:a:fortinet:fortinet_single_sign-on::::::::	1	OR	7.0.0	7.0.1

CVSS Version 2

Version
2.0

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

Access Vector
ADJACENT_NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
5.8

Severity
MEDIUM

Exploitability Score
6.5

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
ADJACENT_NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
CHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.6

Base Severity
CRITICAL

Exploitability Score
2.8

Impact Score
6

References

Reference URL	Reference Tags
https://fortiguard.com/advisory/FG-IR-20-191	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-26088
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26088

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:58:46				Added to TrackCVE
2022-12-05 05:46:38	2021-07-12T14:15Z	2021-07-12T14:15:08	CVE Published Date	updated
2022-12-05 05:46:38		2021-08-02T17:48:37	CVE Modified Date	updated
2022-12-05 05:46:38		Analyzed	Vulnerability Status	updated