CVE-2017-17562 | BDVDB-2026-93996 Detail
EmbedthisGoAhead
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
No weakness recorded in the source data.
References#
- https://github.com/elttam/advisories/tree/master/CVE-2017-17562
- http://www.securitytracker.com/id/1040702
- https://www.elttam.com.au/blog/goahead/
- https://www.exploit-db.com/exploits/43360/
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- https://github.com/embedthis/goahead/commit/6f786c123196eb622625a920d54048629a7caa74
- https://github.com/embedthis/goahead/issues/249
- https://www.exploit-db.com/exploits/43877/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-17562
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.