CVE-2017-17562
High 8.1 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Embedthis GoAhead Remote Code Execution Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
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.
Metrics
- CVSS 3.1
-
8.1 (HIGH)
Score source: NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 97% (percentile: 100) as of 1 November 2026
Affected products
embedthis: goahead; oracle: integrated lights out manager
References
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html PatchThird Party Advisory
- https://github.com/embedthis/goahead/commit/6f786c123196eb622625a920d54048629a7… Broken LinkPatchThird Party Advisory
- https://www.elttam.com.au/blog/goahead/ Broken LinkExploitPatchThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html PatchThird Party Advisory
- https://github.com/embedthis/goahead/commit/6f786c123196eb622625a920d54048629a7… Broken LinkPatchThird Party Advisory
- https://www.elttam.com.au/blog/goahead/ Broken LinkExploitPatchThird Party Advisory
- https://www.exploit-db.com/exploits/43360/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/43877/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/43360/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/43877/ ExploitThird Party AdvisoryVDB Entry