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[email protected]CVE-2021-42757

HistoryDec 08, 2021 - 11:15 a.m.

CVE-2021-42757

2021-12-0811:15:00

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-42757

buffer overflow

fortios

tftp client

cwe-121

arbitrary code execution

nvd

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.2%

JSON

A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

CPENameOperatorVersion
fortinet:fortiwebfortinet fortiwebeq6.4.0
fortinet:fortiosfortinet fortiosle6.2.9
fortinet:fortiwebfortinet fortiwebeq6.4.1
fortinet:fortiproxyfortinet fortiproxyeq7.0.0
fortinet:fortimanagerfortinet fortimanagerle7.0.2
fortinet:fortianalyzerfortinet fortianalyzerle7.0.2
fortinet:fortiosfortinet fortiosle7.0.2
fortinet:fortiproxyfortinet fortiproxyeq7.0.1
fortinet:fortimailfortinet fortimaille7.0.2
fortinet:fortimailfortinet fortimaille6.4.6

CPE	Name	Operator	Version
fortinet:fortiweb	fortinet fortiweb	eq	6.4.0
fortinet:fortios	fortinet fortios	le	6.2.9
fortinet:fortiweb	fortinet fortiweb	eq	6.4.1
fortinet:fortiproxy	fortinet fortiproxy	eq	7.0.0
fortinet:fortimanager	fortinet fortimanager	le	7.0.2
fortinet:fortianalyzer	fortinet fortianalyzer	le	7.0.2
fortinet:fortios	fortinet fortios	le	7.0.2
fortinet:fortiproxy	fortinet fortiproxy	eq	7.0.1
fortinet:fortimail	fortinet fortimail	le	7.0.2
fortinet:fortimail	fortinet fortimail	le	6.4.6

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References

fortiguard.com/advisory/FG-IR-21-173

Social References

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.2%

JSON

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