Open redirect in trailing-slash - CVE-2021-23387
Published: May 25, 2021 / Updated: May 26, 2021
Vulnerability identifier: #VU53535
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-23387
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
trailing-slash
trailing-slash
Software vendor:
Nathan Wittstock
Nathan Wittstock
Description
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to the use of trailing double slashes in the URL when accessing the vulnerable endpoint. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Remediation
Install updates from vendor's website.