Solar FTP Server <= 2.1.1 Malformed USER Denial of Service
36Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 8.7epss 0.7%
from disclosure to weapon0 days
Published on NVDAug 20
metasploitFeb 22
exploitation probability
0.7%top 50% of all CVEs
observed exploitation
nono source reports it
Solar FTP Server fails to properly handle format strings passed to the USER command. When a specially crafted string containing format specifiers is sent, the server crashes due to a read access violation in the __output_1() function of sfsservice.exe. This results in a denial of service (DoS) condition.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Flexbyte Software · Solar FTP ServerReferences
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/ftp/solarftp_user.rbhttps://web.archive.org/web/20111009122553/http://solarftp.com/blog/news/solar-ftp-server-2-1-2.htmlhttps://web.archive.org/web/20111102141514/https://solarftp.com/https://www.exploit-db.com/exploits/16204https://www.vulncheck.com/advisories/solar-ftp-server-malformed-user-dos