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MitreCVE-2017-8862

HistoryNov 22, 2017 - 8:29 a.m.

CVE-2017-8862

2017-11-2208:29:00

CWE-434

mitre

web.nvd.nist.gov

cohu 3960hd

webupgrade

remote code execution

firmware

security vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

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

AI Score

9.4

Confidence

High

EPSS

0.002

Percentile

56.6%

JSON

The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process, allowing an attacker to upload a specially crafted postinstall.sh file that will be executed with “root” privileges.

Affected configurations

Nvd

Node

cohuhd3960hd_firmwareMatch-

AND

cohuhd3960hdMatch-

VendorProductVersionCPE
cohuhd3960hd_firmware-cpe:2.3:o:cohuhd:3960hd_firmware:-:*:*:*:*:*:*:*
cohuhd3960hd-cpe:2.3:h:cohuhd:3960hd:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cohuhd	3960hd_firmware	-	cpe:2.3:o:cohuhd:3960hd_firmware:-:::::::*
cohuhd	3960hd	-	cpe:2.3:h:cohuhd:3960hd:-:::::::*

References

bneg.io/2017/05/12/vulnerabilities-in-cohu-3960hd/

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

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

AI Score

9.4

Confidence

High

EPSS

0.002

Percentile

56.6%

JSON

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