NetSight
high8.1Known exploitedPublic exploit code

CVE-2017-17562

Embedthis GoAhead Remote Code Execution Vulnerability

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-12-10. Federal due date: 2022-06-10.

Apply updates per vendor instructions.

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

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.

Affected products

VendorProductAffected versions
EmbedthisGoahead
before 3.6.5
OracleIntegrated Lights Out Manager
Versions 3.0, 4.0

References