{"id":28156,"date":"2025-04-21T02:28:42","date_gmt":"2025-04-21T02:28:42","guid":{"rendered":""},"modified":"2025-05-26T05:24:56","modified_gmt":"2025-05-26T05:24:56","slug":"cve-2023-51073-arbitrary-code-execution-vulnerability-in-buffalo-ls210d","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-51073-arbitrary-code-execution-vulnerability-in-buffalo-ls210d\/","title":{"rendered":"CVE-2023-51073: Arbitrary Code Execution Vulnerability in Buffalo LS210D<\/strong>"},"content":{"rendered":"

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

A severe vulnerability, known as CVE-2023-51073, has been identified in Buffalo LS210D version 1.78-0.03. This vulnerability allows a remote attacker to execute arbitrary code via the Firmware Update Script at \/etc\/init.d\/update_notifications.sh. As such, it affects any individual or organization that uses Buffalo LS210D, particularly the specified version, in their network infrastructure. This poses a significant risk, as exploitation of this vulnerability could potentially lead to system compromise or data<\/a> leakage, severely impacting the security and integrity of the affected system.<\/p>\n

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

CVE ID: CVE-2023-51073
\nSeverity: High (CVSS score: 8.1)
\nAttack Vector: Remote
\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

Buffalo LS210D | v.1.78-0.03<\/p>\n

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

This exploit works by taking advantage of a flaw in the Firmware Update Script at \/etc\/init.d\/update_notifications.sh in Buffalo LS210D’s system<\/a>. An attacker, without requiring any user interaction or special privileges<\/a>, can remotely send specially crafted inputs to this script. As a result, they can cause the system to execute arbitrary code, potentially gaining unauthorized access or compromising the system’s data<\/a>.<\/p>\n

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

Below is a conceptual example of how the vulnerability might be exploited. This example uses a shell command<\/a>, as that would be the most typical method of exploiting this vulnerability:<\/p>\n

ssh user@target.example.com 'echo \"malicious_payload\" > \/etc\/init.d\/update_notifications.sh && chmod +x \/etc\/init.d\/update_notifications.sh'<\/code><\/pre>\n
In this example, an attacker connects to the target system via<\/a> SSH, then overwrite the `update_notifications.sh` script with their malicious payload. They then make the newly-written script executable, enabling the arbitrary code<\/a> to be run.<\/p>\n
Mitigation<\/strong><\/p>\n
To mitigate this vulnerability, users of Buffalo LS210D should apply the patch provided by the vendor as soon as possible. In case the patch cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation measures to detect and block any attempts to exploit this vulnerability<\/a>. However, these measures should not be seen as a permanent solution, and applying the official patch should be prioritized.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A severe vulnerability, known as CVE-2023-51073, has been identified in Buffalo LS210D version 1.78-0.03. This vulnerability allows a remote attacker to execute arbitrary code via the Firmware Update Script at \/etc\/init.d\/update_notifications.sh. As such, it affects any individual or organization that uses Buffalo LS210D, particularly the specified version, in their network infrastructure. This poses 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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-28156","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"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