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[email protected]CVE-2021-42757

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

CVE-2021-42757

2021-12-0811:15:11

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-42757

buffer overflow

fortios

tftp client

cwe-121

arbitrary code execution

nvd

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack 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

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

6.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

Affected configurations

NVD

Node

fortinetfortiadcRange5.0.0–6.1.5

fortinetfortiadcRange6.2.0–6.2.2

fortinetfortianalyzerRange6.0.0–6.4.7

fortinetfortianalyzerRange7.0.0–7.0.2

fortinetfortimailRange5.4.0–6.2.7

fortinetfortimailRange6.4.0–6.4.6

fortinetfortimailRange7.0.0–7.0.2

fortinetfortimanagerRange6.0.0–6.4.7

fortinetfortimanagerRange7.0.0–7.0.2

fortinetfortindrRange1.1.0–1.5.2

fortinetfortios-6k7kRange≤6.2.8

fortinetfortios-6k7kMatch6.4.2

fortinetfortios-6k7kMatch6.4.6

fortinetfortiportalRange5.0.0–6.0.10

fortinetfortiproxyRange1.0.0–2.0.7

fortinetfortiproxyMatch7.0.0

fortinetfortiproxyMatch7.0.1

fortinetfortivoiceRange6.0.0–6.0.10

fortinetfortivoiceRange6.4.0–6.4.4

fortinetfortiwebRange5.0.0–6.3.16

fortinetfortiwebMatch6.4.0

fortinetfortiwebMatch6.4.1

fortinetfortiosRange5.0.0–6.0.13

fortinetfortiosRange6.2.0–6.2.9

fortinetfortiosRange6.4.0–6.4.7

fortinetfortiosRange7.0.0–7.0.2

fortinetfortirecorder_firmwareRange2.6.0–6.0.10

fortinetfortirecorder_firmwareRange6.4.0–6.4.2

fortinetfortiswitchRange6.0.0–6.4.9

fortinetfortiswitchRange7.0.0–7.0.3

CPENameOperatorVersion
fortinet:fortiadcfortinet fortiadcle6.1.5
fortinet:fortiadcfortinet fortiadcle6.2.2
fortinet:fortianalyzerfortinet fortianalyzerle6.4.7
fortinet:fortianalyzerfortinet fortianalyzerle7.0.2
fortinet:fortimailfortinet fortimaille6.2.7
fortinet:fortimailfortinet fortimaille6.4.6
fortinet:fortimailfortinet fortimaille7.0.2
fortinet:fortimanagerfortinet fortimanagerle6.4.7
fortinet:fortimanagerfortinet fortimanagerle7.0.2
fortinet:fortindrfortinet fortindrle1.5.2

CPE	Name	Operator	Version
fortinet:fortiadc	fortinet fortiadc	le	6.1.5
fortinet:fortiadc	fortinet fortiadc	le	6.2.2
fortinet:fortianalyzer	fortinet fortianalyzer	le	6.4.7
fortinet:fortianalyzer	fortinet fortianalyzer	le	7.0.2
fortinet:fortimail	fortinet fortimail	le	6.2.7
fortinet:fortimail	fortinet fortimail	le	6.4.6
fortinet:fortimail	fortinet fortimail	le	7.0.2
fortinet:fortimanager	fortinet fortimanager	le	6.4.7
fortinet:fortimanager	fortinet fortimanager	le	7.0.2
fortinet:fortindr	fortinet fortindr	le	1.5.2

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CNA Affected

[
  {
    "product": "Fortinet FortiOS",
    "vendor": "Fortinet",
    "versions": [
      {
        "status": "affected",
        "version": "FortiOS before 6.4.7, FortiOS 7.0.0 through 7.0.2"
      }
    ]
  }
]

References

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

Social References

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack 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

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

6.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

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