Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-28966 |
CWE-ID | CWE-22 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Ruby Universal components / Libraries / Scripting languages |
Vendor | Ruby |
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU52001
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2021-28966
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in tmpdir library. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsRuby: 2.7.0 - 3.0.0
http://www.ruby-lang.org/en/news/2021/04/05/tempfile-path-traversal-on-windows-cve-2021-28966/
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?