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CVE-2017-17562

Improper Input Validation — is CVE-2017-17562real, exploitable, or a false positive? Here's the community ground truth.

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High · CVSS 8.1EPSS 96.3%CISA KEVCWE-20 · Improper Input Validation

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

References

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: High (High 2) — CVSS base score 8.1

In line with its CVSS base score.

Field notes & remediation

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    Related CVEs

    Same weakness — CWE-20 · Improper Input Validation.