{"id":29369,"date":"2025-04-23T00:48:56","date_gmt":"2025-04-23T00:48:56","guid":{"rendered":""},"modified":"2025-06-13T17:02:48","modified_gmt":"2025-06-13T23:02:48","slug":"cve-2025-3495-critical-security-vulnerability-in-delta-electronics-commgr-due-to-insufficiently-randomized-session-ids","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3495-critical-security-vulnerability-in-delta-electronics-commgr-due-to-insufficiently-randomized-session-ids\/","title":{"rendered":"CVE-2025-3495: Critical Security Vulnerability in Delta Electronics COMMGR Due to Insufficiently Randomized Session IDs<\/strong>"},"content":{"rendered":"

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

In this post, we delve into a recently reported critical vulnerability, identified as CVE-2025-3495, found in both versions 1 and 2 of Delta Electronics COMMGR. This vulnerability is a direct result of the application’s use of insufficiently randomized values when generating session IDs, thus making those session IDs susceptible to a brute force attack.
\nThe software in question, Delta Electronics COMMGR, is a widely used communication manager, and any security vulnerability within it has the potential<\/a> to affect a broad range of users, from individual consumers to large corporations. The high severity score of this vulnerability<\/a> (9.8 out of 10) underscores its significance and the potential damage it could cause if not promptly addressed.<\/p>\n

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

CVE ID: CVE-2025-3495
\nSeverity: Critical (9.8 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise, potential data leakage<\/a><\/p>\n

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

Product | Affected Versions<\/p>\n

Delta Electronics<\/a> COMMGR | v1, v2<\/p>\n

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

The vulnerability arises from the application’s lack of sufficient randomization<\/a> when generating session IDs. This makes the session IDs predictable and easily brute-forcible by an attacker<\/a>. Once the attacker successfully guesses a session ID, they are essentially granted the same privileges as the user<\/a> associated with that session. This allows the attacker to not only access sensitive information but also execute arbitrary code<\/a>, potentially compromising the entire system.<\/p>\n

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

The following pseudocode serves as a conceptual example of how an attacker might exploit this vulnerability<\/a>:<\/p>\n

import requests\ntarget_url = \"http:\/\/target.example.com\/login\"\nsession_id = \"predictable_session_id\"\nheaders = {\n\"Cookie\": f\"session_id={session_id}\"\n}\n# Attempt to access the system using the predicted session ID\nresponse = requests.get(target_url, headers=headers)\nif response.status_code == 200:\nprint(\"Successful login!\")\n# Proceed with malicious activities\nelse:\nprint(\"Failed login attempt. Try another session ID.\")<\/code><\/pre>\n
In this example, the attacker has predicted the session ID (`predictable_session_id`) and uses it to try to gain access<\/a> to the system. If the guessed session ID is correct, the attacker can then proceed with their malicious activities.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To rectify this vulnerability, users are advised to apply the latest<\/a> vendor-provided patch. If a patch is not yet available or cannot be implemented immediately, employing a web application firewall (WAF) or intrusion detection system (IDS) can serve as a temporary mitigation strategy. Regularly monitor your system’s logs and set up alerts for any suspicious activities or repeated failed login attempts to detect any brute force<\/a> attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In this post, we delve into a recently reported critical vulnerability, identified as CVE-2025-3495, found in both versions 1 and 2 of Delta Electronics COMMGR. This vulnerability is a direct result of the application’s use of insufficiently randomized values when generating session IDs, thus making those session IDs susceptible to a brute force attack. […]<\/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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-29369","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"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