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TITLE:
Sysax Multi Server Two Buffer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA48188

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48188/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48188

RELEASE DATE:
2012-02-29

DISCUSS ADVISORY:
http://secunia.com/advisories/48188/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/48188/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=48188

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Craig Freyman has reported two vulnerabilities in Sysax Multi Server,
which can be exploited by malicious users and malicious people to
compromise a vulnerable system.

1) A boundary error in the SSH component when handling authentication
requests can be exploited to cause a stack-based buffer overflow by
sending an authentication request with an overly long username.

2) A boundary error in the SFTP component when handling requests to
retrieve files can be exploited by an authenticated user to cause a
stack-based buffer overflow by sending a request with an overly long
filename.

Successful exploitation of the vulnerabilities allows execution of
arbitrary code with SYSTEM privileges.

The vulnerabilities are reported in version 5.53. Prior versions may
also be affected.

SOLUTION:
Update to version 5.55.

PROVIDED AND/OR DISCOVERED BY:
Craig Freyman

ORIGINAL ADVISORY:
Craig Freyman:
http://www.pwnag3.com/2012/02/sysax-multi-server-ssh-username-exploit.html
http://www.pwnag3.com/2012/02/sysax-multi-server-553-sftp-exploit.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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