CVE-2017-8862 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cohuhd	3960Hd Firmware	-
Cohuhd	3960Hd	-

Related Weaknesses (CWE)

CWE-434

References

https://bneg.io/2017/05/12/vulnerabilities-in-cohu-3960hd/Third Party Advisory
https://bneg.io/2017/05/12/vulnerabilities-in-cohu-3960hd/Third Party Advisory

FAQ

What is CVE-2017-8862?

CVE-2017-8862 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 "roo...

How severe is CVE-2017-8862?

CVE-2017-8862 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-8862?

Check the references section above for vendor advisories and patch information. Affected products include: Cohuhd 3960Hd Firmware, Cohuhd 3960Hd.