{"id":34290,"date":"2025-05-03T05:50:34","date_gmt":"2025-05-03T05:50:34","guid":{"rendered":""},"modified":"2025-09-26T20:58:56","modified_gmt":"2025-09-27T02:58:56","slug":"cve-2023-7208-critical-buffer-overflow-vulnerability-in-totolink-x2000r-v2-2-0-0-b20230727-10434","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-7208-critical-buffer-overflow-vulnerability-in-totolink-x2000r-v2-2-0-0-b20230727-10434\/","title":{"rendered":"CVE-2023-7208: Critical Buffer Overflow Vulnerability in Totolink X2000R_V2 2.0.0-B20230727.10434<\/strong>"},"content":{"rendered":"

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

In an ever-evolving digital landscape, cybersecurity threats are a constant concern for businesses and individuals alike. One such threat that has recently surfaced is a critical vulnerability found in Totolink’s X2000R_V2 2.0.0-B20230727.10434. This security flaw, identified as CVE-2023-7208, affects the function formTmultiAP of the file \/bin\/boa and has the potential to lead to a system<\/a> compromise or data leakage if exploited. This vulnerability is particularly concerning due<\/a> to the lack of response from the vendor, prompting the need for immediate attention and mitigative measures.<\/p>\n

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

CVE ID: CVE-2023-7208
\nSeverity: Critical, CVSS score of 8.0
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Totolink X2000R_V2 | 2.0.0-B20230727.10434<\/p>\n

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

The vulnerability lies in the formTmultiAP function of the \/bin\/boa file<\/a>. A carefully crafted manipulation can lead to a buffer overflow<\/a>, allowing potential threat actors to execute arbitrary code or cause a denial of service (DoS) condition. With no reported requirement for user interaction or privileges, this vulnerability is especially dangerous as it can be exploited remotely<\/a> by unauthenticated attackers.<\/p>\n

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

While no specific exploit code has been made public, a theoretical exploit could look similar to this:<\/p>\n

POST \/bin\/boa HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nformTmultiAP={ \"malicious_payload\": \"A\".repeat(5000) }<\/code><\/pre>\n
In this example, the “A”.repeat(5000) represents a buffer overflow attack, where the attacker sends more data<\/a> than the buffer can handle, causing it to overflow and potentially allowing the attacker to execute arbitrary code.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Due to the lack of response from the vendor, immediate mitigation steps are crucial<\/a>. Users should consider deploying a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can help detect and block attempts to exploit this vulnerability<\/a>. Users are advised to keep a close watch on any updates from the vendor and apply patches as soon as they become available.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In an ever-evolving digital landscape, cybersecurity threats are a constant concern for businesses and individuals alike. One such threat that has recently surfaced is a critical vulnerability found in Totolink’s X2000R_V2 2.0.0-B20230727.10434. This security flaw, identified as CVE-2023-7208, affects the function formTmultiAP of the file \/bin\/boa and has the potential to lead to a […]<\/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":[86,87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-34290","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-dos"],"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