CVE-2011-5010

EXPLOITED

Ctek SkyRouter 4200 and 4300 - Remote Code Execution via PINGADDRESS Parameter

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2011-5010 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 2 public exploits from researchers including Metasploit, savant42, including a Metasploit module exploits/unix/http/ctek_skyrouter.

AI-analyzed exploit summary This Metasploit module exploits an unauthenticated command injection vulnerability in CTEK SkyRouter 4200 and 4300 devices via the 'cfg_ethping.cgi' endpoint. It sends a crafted POST request with a malicious payload in the 'PINGADDRESS' parameter to achieve remote code execution.

Description

apps/a3/cfg_ethping.cgi in the Ctek SkyRouter 4200 and 4300 allows remote attackers to execute arbitrary commands via shell metacharacters in the PINGADDRESS parameter for a "u" action.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotehardware
https://www.exploit-db.com/exploits/18172

This Metasploit module exploits an unauthenticated command injection vulnerability in CTEK SkyRouter 4200 and 4300 devices via the 'cfg_ethping.cgi' endpoint. It sends a crafted POST request with a malicious payload in the 'PINGADDRESS' parameter to achieve remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: CTEK SkyRouter 4200 and 4300
No auth needed
Prerequisites: Network access to the target device · The target device must be running a vulnerable version of the firmware
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
by savant42 · rubypocunix
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/http/ctek_skyrouter.rb

This Metasploit module exploits an unauthenticated command injection vulnerability in CTEK SkyRouter 4200 and 4300 via the `cfg_ethping.cgi` endpoint. It sends a crafted POST request with a payload appended to the `PINGADDRESS` parameter, achieving remote command execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: CTEK SkyRouter 4200 and 4300
No auth needed
Prerequisites: Network access to the target device · Vulnerable firmware version
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Issue Tracking x_refsource_misc
http://dev.metasploit.com/redmine/issues/5610
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/50867
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/77497
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/47003
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18172

Scores

EPSS 0.8341
EPSS Percentile 99.3%

Details

VulnCheck KEV 2020-12-01
CWE
CWE-264
Status published
Products (2)
ctekproducts/skyrouter 4200
ctekproducts/skyrouter 4300
Published Dec 25, 2011
Tracked Since Feb 18, 2026