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Fencer Vulns
high 8.1

CVE-2017-17562 kev in the critical feed json

Embedthis GoAhead before 3.6.5 allows remote code execution if CGI is enabled and a CGI program is dynamically linked.

published 2017-12-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8720

cvss
8.1
version 3.1, CNA
cisa kev
Exploited
added 2021-12-10
epss
97.1%
EPSS 97.1% chance of exploitation in 30 days, percentile 99.8%
public exploits
3
Metasploit, Exploit-DB, plus a Nuclei check

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • embedthis goahead 3.6.5

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-090-06 updated cvss 10.0

General Electric Renewable Energy MDS Radios

  • General Electric (GE) iNET/iNET II series radio < rev. 8.3.0 General Electric (GE) SD series radio < rev. 6.4.7 General Electric (GE) TD220MAX series radio < rev. 1.2.6 General Electric (GE) TD220X series radio < rev. 2.0.16
    affected: vendor fix, mitigation “iNET/iNET II series radio firmware rev.8.3.0” gegridsolutions.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. Published
  2. First public exploit (Metasploit exploit/linux/http/goahead_ldpreload)
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-06-10 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Embedthis, GoAhead
CISA name
Embedthis GoAhead Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

97.13% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/http/goahead_ldpreload GoAhead Web Server LD_PRELOAD Arbitrary Module Load metasploit exploit, excellent rank, 2017-12-18
  • EDB-43877 GoAhead Web Server 2.5 < 3.6.5 - HTTPd 'LD_PRELOAD' Arbitrary Module Load (Metasploit) remote, 2018-01-24
  • EDB-43360 GoAhead Web Server 2.5 < 3.6.5 - HTTPd 'LD_PRELOAD' Remote Code Execution remote, 2017-12-18
  • Nuclei template Embedthis GoAhead <3.6.5 - Remote Code Execution nuclei detection template
  • elttam.com.au https://www.elttam.com.au/blog/goahead/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.