VULNERABILITY INTELLIGENCE
CVE-2017-17562
CVSS score8.1 HIGH
EPSS probability97.13%
CISA KEVKnown exploited vulnerability
Published2017-12-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Known Exploited Vulnerability
Embedthis GoAhead Remote Code Execution Vulnerability
Vendor / product: Embedthis / GoAhead
Description
Embedthis GoAhead before 3.6.5 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.
Primary references
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Broken Link, Third Party Advisory, VDB Entry
- cve@mitre.org — Broken Link, Third Party Advisory
- cve@mitre.org — Broken Link, Patch, Third Party Advisory
- cve@mitre.org — Broken Link, Issue Tracking, Third Party Advisory
- cve@mitre.org — Broken Link, Exploit, Patch, Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Patch, Third Party Advisory