SB2022081663 - Multiple vulnerabilities in Eternal Terminal



SB2022081663 - Multiple vulnerabilities in Eternal Terminal

Published: August 16, 2022 Updated: May 1, 2024

Security Bulletin ID SB2022081663
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2022-24949)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the PipeSocketHandler::listen() function. A remote user can trigger a race condition and execute arbitrary code on the system.


2) Race condition (CVE-ID: CVE-2022-24950)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to a race condition. A remote user can hijack other users' SSH authorization socket and login as other users.


3) Race condition (CVE-ID: CVE-2022-24951)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to hijack Eternal Terminal's IPC socket.

The vulnerability exists due to a race condition. A local user can hijack Eternal Terminal's IPC socket and allow remote clients to connect to the system.


4) Input validation error (CVE-ID: CVE-2022-24952)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send  specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.