Luigi Auriemma has reported some vulnerabilities in Georgia SoftWorks SSH2 Server, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.
1) A format string error in the log function when handling usernames can be exploited by sending a username containing format string specifiers.
2) A boundary error in the log function when handling usernames can be exploited to cause a buffer overflow by sending an overly-long username.
3) A boundary error within the handling of passwords can be exploited to cause a buffer overflow by sending an overly-long password.
Successful exploitation may allow execution of arbitrary code.
The vulnerabilities are reported in version 7.01.0003. Other versions may also be affected.
Solution: Restrict network access to the service.
Provided and/or discovered by: Luigi Auriemma
Original Advisory: http://aluigi.altervista.org/adv/gswsshit-adv.txt
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Subject: Georgia SoftWorks SSH2 Server Multiple Vulnerabilities
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