Actively exploited in the wild
Embedthis GoAhead Remote Code Execution Vulnerability
Embedthis - GoAhead · Listed in the CISA KEV since 2021-12-10. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2017-17562
HighCVSS 8.1KEVSummary
Embedthis GoAhead przed wersją 3.6.5 umożliwia zdalne wykonanie kodu, jeśli CGI jest włączone, a program CGI jest dynamicznie powiązany. Problem wynika z inicjalizacji środowiska skryptów CGI w funkcji cgiHandler przy użyciu nieufnych parametrów żądania HTTP.
Risk Assessment
Wykorzystanie tej podatności może prowadzić do zdalnego wykonania kodu, co stwarza poważne zagrożenie dla bezpieczeństwa systemu i danych organizacji.
Recommendation
Zaleca się aktualizację Embedthis GoAhead do wersji 3.6.5 lub nowszej oraz wyłączenie CGI, jeśli nie jest to konieczne.
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Original NVD description (English source)
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.