SB2021081314 - Multiple vulnerabilities in cPanel
Published: August 13, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Security features bypass (CVE-ID: CVE-2021-38587)
CWE-ID: CWE-254 - Security Features
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a flaw in scripts/fix-cpanel-perl. A remote attacker can send a specially crafted request and create arbitrary temporary files.
2) Security features bypass (CVE-ID: CVE-2021-38589)
CWE-ID: CWE-254 - Security Features
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a flaw in scripts/fix-cpanel-perl. A remote attacker can send a specially crafted request and overwrite arbitrary files on the system.
3) Improper validation of integrity check value (CVE-ID: CVE-2021-38588)
CWE-ID: CWE-354 - Improper Validation of Integrity Check Value
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper verification of the integrity of downloads in fix_cpanel_perl. A remote attacker can trick a victim to download a specially crafted file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.