SB2022032221 - Multiple vulnerabilities in ImpressCMS

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper Authentication (CVE-ID: CVE-2021-26600)

CWE-ID: CWE-287 - Improper Authentication

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

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the "/plugins/preloads/autologin.php" script. A remote attacker can bypass authentication process and gain unauthorized access to the application.

2) Path traversal (CVE-ID: CVE-2021-26601)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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

The vulnerability allows a remote user to delete arbitrary files on the system.

The vulnerability exists due to input validation error when processing directory traversal sequences in "/libraries/image-editor/image-edit.php". A remote authenticate user can send a specially crafted HTTP request and delete arbitrary files on the system.

3) Improper access control (CVE-ID: CVE-2021-26598)

CWE-ID: CWE-284 - Improper Access Control

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

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within "/include/findusers.php" file. A remote attacker can bypass implemented security restrictions and obtain sensitive information about application users.

Remediation

Install update from vendor's website.

References

• http://karmainsecurity.com/KIS-2022-01
• https://hackerone.com/reports/1081986
• http://karmainsecurity.com/KIS-2022-02
• https://hackerone.com/reports/1081878
• http://karmainsecurity.com/KIS-2022-03
• https://hackerone.com/reports/1081137