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Vulnerability Analysis

CVE-2017-17562

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.

CISA KEV Nuclei Template
CVSS Base Score
8.1
HIGH
Exploitability:2.3
Impact Score:5.9
Temporal Score:-
EPSS:96.33%

Threat Intelligence Signals

CISA KEV
YES
KEV Date Added
2021-12-10
Ransomware Use
Unknown
KEV Due Date
2022-06-10
VulnCheck In-the-Wild
No
Nuclei Template
YES
EPSS Score
96.327%
EPSS Percentile
99.9th pct
GitHub Severity
HIGH
SSVC Exploitation
SSVC Automatable
Vulnerability Class

Identity & Timeline

Status-
Assigning Authority-
CVSS Version / Source-
Reserved-
Published-
Patch Date (date_public)-
Exploit DB Date-
First GitHub PoC Date-
Last Updated-
Time to Patch (Days to fix)-
Exploit Release Gap-
PoC Release Gap-
Exploit DB ReferencesNone identified

Affected Products & Versions

Vendor Product Affected Versions
No affected products specified.

References

No reference links found.

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