CVE-2026-119567: vsftpd, логическа грешка

Описание

Оригинално описание

vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories.

Засегнати продукти

• vsftpd vsftpd: до 3.0.5

Вид слабост

• CWE-184 Непълен списък със забранени входове

История

Други уязвимости в vsftpd vsftpd

• 9.1CVE-2026-119568
• CVE-2011-2523

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-119567
• https://nvd.nist.gov/vuln/detail/CVE-2026-119567
• https://abraxaslabs.tech/research/vsftpd-cmds-denied-alias
• https://security.appspot.com/vsftpd.html
• https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-cmds-denied-bypass-via-rfc-775-command-aliases