CVE-2008-4247

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-09-25 · updated 2026-06-16
Weakness: CWE-352

Description

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser.

Affected products

FreeBSD: 7.0
Netbsd: 4.0
OpenBSD: 4.3

References

http://bugs.proftpd.org/show_bug.cgi?id=3115
http://secunia.com/advisories/32068
http://secunia.com/advisories/32070
http://secunia.com/advisories/33341
http://security.FreeBSD.org/advisories/FreeBSD-SA-08:12.ftpd.asc
http://securityreason.com/achievement_securityalert/56
http://securityreason.com/securityalert/4313
http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpcmd.y
http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpcmd.y.diff?r1=1.51&r2=1.52&f=h
http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpd.c
http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpd.c.diff?r1=1.183&r2=1.184&f=h

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