PT-2017-8999 · Zoho · Zoho Webnms Framework

Pedro Ribeiro · Published 2017-01-23 · Updated 2018-10-09 · CVE-2016-6601

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ZOHO WebNMS Framework versions 5.2 through 5.2 SP1

Description A directory traversal issue exists in the file download functionality, allowing remote attackers to read arbitrary files. This is achieved by including a .. (dot dot) in the fileName parameter to the "servlets/FetchFile" endpoint.

Recommendations For ZOHO WebNMS Framework versions 5.2 through 5.2 SP1, consider restricting access to the "servlets/FetchFile" endpoint until a patch is available. Avoid using the fileName parameter with unvalidated input to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2016-6601

Affected Products

Zoho Webnms Framework

References · 14

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/http/webnms_file_download.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/http/webnms_cred_disclosure.rb · Exploit
• 🔥 https://github.com/pedrib/PoC/blob/master/advisories/webnms-5.2-sp1-pwn.txt · Exploit
• 🔥 http://packetstormsecurity.com/files/138244/WebNMS-Framework-5.2-SP1-Traversal-Weak-Obfuscation-User-Impersonation.html · Exploit
• 🔥 https://blogs.securiteam.com/index.php/archives/2712 · Exploit
• 🔥 https://exploit-db.com/exploits/40229 · Exploit
• 🔥 http://seclists.org/fulldisclosure/2016/Aug/54 · Exploit
• https://osv.dev/vulnerability/CVE-2016-6601 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-6601 · Security Note
• http://securityfocus.com/archive/1/539159/100/0/threaded · Note
• http://securityfocus.com/bid/92402 · Note
• http://rapid7.com/db/modules/auxiliary/admin/http/webnms_cred_disclosure · Note
• http://rapid7.com/db/modules/auxiliary/admin/http/webnms_file_download · Note
• https://forums.webnms.com/topic/recent-vulnerabilities-in-webnms-and-how-to-protect-the-server-against-them · Note