CVE-2020-29390 — CRITICAL (9.8)

Vulnerability Description

Zeroshell 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet StartSessionSubmit parameter that could allow an unauthenticated attacker to execute a system command by using shell metacharacters and the %0a character.

CVSS Score

9.8

CRITICAL

CVSS:3.1/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
Zeroshell	Zeroshell	3.9.3

Related Weaknesses (CWE)

CWE-78

References

https://blog.quake.so/post/zeroshell_linux_router_rce/ExploitThird Party Advisory
https://blog.quake.so/post/zeroshell_linux_router_rce/ExploitThird Party Advisory

FAQ

What is CVE-2020-29390?

CVE-2020-29390 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Zeroshell 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet StartSessionSubmit parameter that could allow an unauthenticated attacker to execute a system command by using shell...

How severe is CVE-2020-29390?

CVE-2020-29390 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-2020-29390?

Check the references section above for vendor advisories and patch information. Affected products include: Zeroshell Zeroshell.