{"id":59496,"date":"2025-07-19T18:02:05","date_gmt":"2025-07-19T18:02:05","guid":{"rendered":""},"modified":"2025-09-03T19:03:57","modified_gmt":"2025-09-04T01:03:57","slug":"cve-2013-3307-command-injection-vulnerability-in-linksys-routers","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2013-3307-command-injection-vulnerability-in-linksys-routers\/","title":{"rendered":"CVE-2013-3307: Command Injection Vulnerability in Linksys Routers<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The Common Vulnerability and Exposure (CVE) identifier CVE-2013-3307 refers to a critical security flaw found in certain versions of Linksys routers. This vulnerability affects E1000 devices through version 2.1.02, E1200 devices before version 2.0.05, and E3200 devices through version 1.0.04. This security issue allows attackers to inject operating system<\/a> commands via shell metacharacters in the apply.cgi ping_ip parameter on TCP port 52000. The severity of this vulnerability is underscored by its potential to lead<\/a> to a full system compromise or data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2013-3307
\nSeverity: High (8.3 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise<\/a>, data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Linksys E1000 | Versions up to 2.1.02
\nLinksys E1200 | Versions before 2.0.05
\nLinksys E3200 | Versions up to 1.0.04<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of a security<\/a> oversight in the web interface of the affected Linksys routers. More specifically, it exploits the routers’ lack of proper input sanitization in the apply.cgi ping_ip parameter<\/a>, which allows for the injection of shell metacharacters. An attacker can use these metacharacters to inject and execute arbitrary OS commands<\/a>. The attack can be initiated remotely over the network without requiring any privileges<\/a> or user interaction, making this a particularly dangerous vulnerability.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following is a conceptual example of a malicious HTTP request exploiting this vulnerability<\/a>:<\/p>\n

POST \/apply.cgi HTTP\/1.1\nHost: :52000\nContent-Type: application\/x-www-form-urlencoded\nping_ip=;cat \/etc\/passwd;<\/code><\/pre>\n
In this example, the attacker sends a POST request to the apply.cgi endpoint on the router’s web interface. The “ping_ip” parameter is set to a command that, when executed, will return the contents of the \/etc\/passwd file, potentially revealing sensitive system<\/a> information. Note that this is a simplified example, the actual attack may involve more complex commands and require further knowledge of the target system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Common Vulnerability and Exposure (CVE) identifier CVE-2013-3307 refers to a critical security flaw found in certain versions of Linksys routers. This vulnerability affects E1000 devices through version 2.1.02, E1200 devices before version 2.0.05, and E3200 devices through version 1.0.04. This security issue allows attackers to inject operating system commands via shell metacharacters in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[78],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59496","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-injection"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t