Sysax Multi Server < 5.55 SSH Username Buffer Overflow
63Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 9.3epss 3.0%
from disclosure to weapon0 days
Published on NVDAug 13
metasploitFeb 27
exploitation probability
3.0%top 14% of all CVEs
observed exploitation
nono source reports it
4 public exploit(s)
Sysax Multi Server versions prior to 5.55 contain a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long username during authentication, the server copies the input to a fixed-size stack buffer without proper bounds checking. This allows remote code execution under the context of the service.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Sysax Software · Multi Serverpublic PoCs found — 4
cve_referenceraw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ssh/sysax_ssh_username.rbunverifiedcve_referenceweb.archive.org/web/20120302203344/http://www.pwnag3.com/2012/02/sysax-multi-server-ssh-username-exploit.htmlunverifiedcve_referencewww.exploit-db.com/exploits/18535unverifiedcve_referencewww.exploit-db.com/exploits/18557unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://advisories.checkpoint.com/defense/advisories/public/2012/cpai-23-sepc.htmlhttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ssh/sysax_ssh_username.rbhttps://web.archive.org/web/20120302203344/http://www.pwnag3.com/2012/02/sysax-multi-server-ssh-username-exploit.htmlhttps://www.exploit-db.com/exploits/18535https://www.exploit-db.com/exploits/18557https://www.sysax.com/https://www.vulncheck.com/advisories/sysax-multi-server-ssh-username-buffer-overflow