Test ID:	1.3.6.1.4.1.25623.1.0.140609
Category:	Web Servers
Title:	Embedthis GoAhead < 3.6.5 RCE Vulnerability - Active Check
Summary:	Embedthis GoAhead is prone to a remote code execution (RCE); vulnerability.
Description:	Summary: Embedthis GoAhead is prone to a remote code execution (RCE) vulnerability. Vulnerability Insight: Embedthis GoAhead allows remote code execution if CGI is enabled and a CGI program is dynamically linked. This is a result of initializing the environment of forked CGI scripts using untrusted HTTP request parameters in the cgiHandler function in cgi.c. When combined with the glibc dynamic linker, this behaviour can be abused for remote code execution using special parameter names such as LD_PRELOAD. An attacker can POST their shared object payload in the body of the request, and reference it using /proc/self/fd/0. Vulnerability Impact: An unauthenticated attacker may execute arbitrary code. Affected Software/OS: Embedthis GoAhead versions prior to 3.6.5. Solution: Updated to version 3.6.5 or later. As a migitation step disable CGI support. CVSS Score: 6.8 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-17562 https://www.exploit-db.com/exploits/43360/ https://www.exploit-db.com/exploits/43877/ https://github.com/elttam/advisories/tree/master/CVE-2017-17562 https://github.com/embedthis/goahead/commit/6f786c123196eb622625a920d54048629a7caa74 https://github.com/embedthis/goahead/issues/249 https://www.elttam.com.au/blog/goahead/ http://www.securitytracker.com/id/1040702
Copyright	Copyright (C) 2017 Greenbone AG

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