Command Injection Vulnerability in Zeroshell Router by Zeroshell
CVE-2020-29390

9.8CRITICAL

Key Information:

Vendor

Zeroshell

Status
Zeroshell
Vendor
CVE Published:
30 November 2020

What is CVE-2020-29390?

Zeroshell version 3.9.3 has a command injection vulnerability that affects the StartSessionSubmit parameter in the /cgi-bin/kerbynet endpoint. This flaw allows an unauthenticated attacker to manipulate input using shell metacharacters and the %0a character, potentially leading to arbitrary system command execution. Exploiting this vulnerability could enable attackers to gain unauthorized access and control over the affected device.

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References

https://blog.quake.so/post/zeroshell_linux_router_rce/
x_refsource_MISC

EPSS Score

90% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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