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MitreCVE-2020-29299

HistoryDec 27, 2020 - 6:15 a.m.

CVE-2020-29299

2020-12-2706:15:12

CWE-77

mitre

web.nvd.nist.gov

zyxel

command injection

admin

password change

vpn

usg

atp

nsg

vulnerability

cve-2020-29299

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.2

Confidence

High

EPSS

0.001

Percentile

46.8%

JSON

Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.

Affected configurations

Nvd

Node

zyxelvpn_orchestratorRange<10.03

zyxelzldRange<4.39

Node

zyxelzldRange<4.55

AND

zyxelusg_flexMatch-

Node

zyxelzldRange<4.55

AND

zyxelatpMatch-

Node

zyxelnsg_firmwareRange<1.33

zyxelnsg_firmwareMatch1.33-

zyxelnsg_firmwareMatch1.33patch1

AND

zyxelnsgMatch-

Node

zyxelusg_flex_firmwareMatch-

zyxelzldRange<4.39

AND

zyxelusg_flexMatch-

VendorProductVersionCPE
zyxelvpn_orchestrator*cpe:2.3:o:zyxel:vpn_orchestrator:*:*:*:*:*:*:*:*
zyxelzld*cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*
zyxelusg_flex-cpe:2.3:h:zyxel:usg_flex:-:*:*:*:*:*:*:*
zyxelatp-cpe:2.3:h:zyxel:atp:-:*:*:*:*:*:*:*
zyxelnsg_firmware*cpe:2.3:o:zyxel:nsg_firmware:*:*:*:*:*:*:*:*
zyxelnsg_firmware1.33cpe:2.3:o:zyxel:nsg_firmware:1.33:-:*:*:*:*:*:*
zyxelnsg_firmware1.33cpe:2.3:o:zyxel:nsg_firmware:1.33:patch1:*:*:*:*:*:*
zyxelnsg-cpe:2.3:h:zyxel:nsg:-:*:*:*:*:*:*:*
zyxelusg_flex_firmware-cpe:2.3:o:zyxel:usg_flex_firmware:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zyxel	vpn_orchestrator	*	cpe:2.3:o:zyxel:vpn_orchestrator::::::::
zyxel	zld	*	cpe:2.3:o:zyxel:zld::::::::
zyxel	usg_flex	-	cpe:2.3:h:zyxel:usg_flex:-:::::::*
zyxel	atp	-	cpe:2.3:h:zyxel:atp:-:::::::*
zyxel	nsg_firmware	*	cpe:2.3:o:zyxel:nsg_firmware::::::::
zyxel	nsg_firmware	1.33	cpe:2.3:o:zyxel:nsg_firmware:1.33:-::::::
zyxel	nsg_firmware	1.33	cpe:2.3:o:zyxel:nsg_firmware:1.33:patch1::::::
zyxel	nsg	-	cpe:2.3:h:zyxel:nsg:-:::::::*
zyxel	usg_flex_firmware	-	cpe:2.3:o:zyxel:usg_flex_firmware:-:::::::*

References

www.zyxel.com/support/Zyxel-security-advisory-for-command-injection-vulnerability-of-firewalls.shtml

www.zyxel.com/us/en/support/security_advisories.shtml

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.2

Confidence

High

EPSS

0.001

Percentile

46.8%

JSON

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