Input validation error in Archive_Tar - CVE-2020-28949
Published: November 19, 2020 / Updated: October 3, 2022
Vulnerability identifier: #VU48668
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-28949
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: PHP Group
Affected software:
Archive_Tar
Archive_Tar
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper sanitization of the user-supplied input when processing URI handlers in filenames. A remote attacker can pass the "file://" string in the filename and overwrite arbitrary files on the system.
How to mitigate CVE-2020-28949
Install updates from vendor's website.