CVE-2016-6601

Directory traversal vulnerability in the file download functionality in ZOHO WebNMS Framework 5.2 and 5.2 SP1 allows remote attackers to read arbitrary files via a .. (dot dot) in the fileName parameter to servlets/FetchFile.

• CWE-22

• http://packetstormsecurity.com/files/138244/WebNMS-Framework-5.2-SP1-Traversal-Weak-Obfuscation-User-Impersonation.htmlExploit, Third Party Advisory
• http://seclists.org/fulldisclosure/2016/Aug/54Exploit, Mailing List
• http://www.rapid7.com/db/modules/auxiliary/admin/http/webnms_cred_disclosureThird Party Advisory
• http://www.rapid7.com/db/modules/auxiliary/admin/http/webnms_file_downloadThird Party Advisory
• http://www.securityfocus.com/archive/1/539159/100/0/threaded
• http://www.securityfocus.com/bid/92402Third Party Advisory, VDB Entry
• https://blogs.securiteam.com/index.php/archives/2712Exploit, Technical Description, Third Party Advisory
• https://forums.webnms.com/topic/recent-vulnerabilities-in-webnms-and-how-to-protect-the-server-against-them
• https://github.com/pedrib/PoC/blob/master/advisories/webnms-5.2-sp1-pwn.txtExploit
• https://www.exploit-db.com/exploits/40229/Exploit, Third Party Advisory
• http://packetstormsecurity.com/files/138244/WebNMS-Framework-5.2-SP1-Traversal-Weak-Obfuscation-User-Impersonation.htmlExploit, Third Party Advisory
• http://seclists.org/fulldisclosure/2016/Aug/54Exploit, Mailing List
• http://www.rapid7.com/db/modules/auxiliary/admin/http/webnms_cred_disclosureThird Party Advisory
• http://www.rapid7.com/db/modules/auxiliary/admin/http/webnms_file_downloadThird Party Advisory
• http://www.securityfocus.com/archive/1/539159/100/0/threaded
• http://www.securityfocus.com/bid/92402Third Party Advisory, VDB Entry
• https://blogs.securiteam.com/index.php/archives/2712Exploit, Technical Description, Third Party Advisory
• https://forums.webnms.com/topic/recent-vulnerabilities-in-webnms-and-how-to-protect-the-server-against-them
• https://github.com/pedrib/PoC/blob/master/advisories/webnms-5.2-sp1-pwn.txtExploit
• https://www.exploit-db.com/exploits/40229/Exploit, Third Party Advisory

Published

Jan 23, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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