CVE-2020-8634 Privilege escalation in n/a
Low-privilege users can escalate to root by editing sensitive system files via the HTTP interface due to insecure file permissions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8634?
CVE-2020-8634 is a high-severity vulnerability in n/a, published on 6 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on files modified within the HTTP file management interface, resulting in files being saved with world-readable and world-writable permissions. If a sensitive system file were edited this way, a low-privilege user may escalate privileges to root.
Weakness: CWE-281
Which versions are affected by CVE-2020-8634?
It affects 1 product.
Products include Wftpserver Wing Ftp Server.
How do I fix CVE-2020-8634?
No fix has been published for CVE-2020-8634 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8634 being exploited?
There is no known exploitation of CVE-2020-8634 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2025-47812 Wing FTP Server Improper Neutralization of Null Byte or NUL Character
- CVE-2025-47813 Wing FTP Server Information Disclosure
- CVE-2026-44403 Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
- CVE-2020-37032 Wing FTP Server 6.3.8 - Remote Code Execution
- CVE-2019-25267 Wing FTP Server 6.0.7 - Unquoted Service Path
Sources
Also known as GHSA-h98j-87f6-38m2.