{"id":64117,"date":"2025-08-17T09:38:21","date_gmt":"2025-08-17T09:38:21","guid":{"rendered":""},"modified":"2025-09-05T10:19:45","modified_gmt":"2025-09-05T16:19:45","slug":"cve-2025-25235-server-side-request-forgery-in-omnissa-secure-email-gateway","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-25235-server-side-request-forgery-in-omnissa-secure-email-gateway\/","title":{"rendered":"CVE-2025-25235: Server-Side Request Forgery in Omnissa Secure Email Gateway<\/strong>"},"content":{"rendered":"

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

CVE-2025-25235 is a serious Server-Side Request Forgery (SSRF) vulnerability that affects Omnissa Secure Email Gateway (SEG) running on Windows and UAG platforms. SSRF vulnerabilities are a common issue, but they are especially concerning when they exist in security infrastructure such as Omnissa’s SEG. The vulnerability’s impact is heightened due<\/a> to the possibility of routing network traffic such as HTTP requests to internal networks, potentially leading to system compromise or data leaks.<\/p>\n

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

CVE ID: CVE-2025-25235
\nSeverity: High (8.6 CVSS Score)
\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

Omnissa Secure Email Gateway (Windows) | Prior to 2.32
\nOmnissa Secure Email Gateway (UAG) | Prior to 2503<\/p>\n

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

The vulnerability lies in the ability of an attacker to manipulate the server into sending requests<\/a> on their behalf. The SSRF vulnerability<\/a> in Omnissa’s SEG allows an attacker to forge requests from the server to internal networks. This could potentially expose sensitive internal resources and data<\/a>. Depending on the configuration of the internal network, this could even allow an attacker to bypass firewalls and access<\/a> internal services.<\/p>\n

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

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

GET \/fetch?url=http:\/\/internal.example.com\/secrets HTTP\/1.1\nHost: vulnerable.example.com\nContent-Type: application\/json\n{ \"malicious_payload\": \"...\" }<\/code><\/pre>\n
In this example, the attacker is instructing the vulnerable server to fetch a resource from an internal network<\/a> (`http:\/\/internal.example.com\/secrets`) and return the data.<\/p>\n
Recommendations for Mitigation<\/strong><\/p>\n
The most effective mitigation for this vulnerability is to apply the vendor’s patch. Omnissa has released updates that rectify this SSRF vulnerability<\/a> in SEG. Users running SEG on Windows should upgrade to version<\/a> 2.32 or later, while users on UAG should upgrade to version 2503 or later.
\nIn cases where patching is not immediately possible, use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these should be seen as interim solutions only. Long-term security can only be assured by patching the vulnerability<\/a> at its source.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-25235 is a serious Server-Side Request Forgery (SSRF) vulnerability that affects Omnissa Secure Email Gateway (SEG) running on Windows and UAG platforms. SSRF vulnerabilities are a common issue, but they are especially concerning when they exist in security infrastructure such as Omnissa’s SEG. The vulnerability’s impact is heightened due to the possibility of routing […]<\/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":[82],"product":[],"attack_vector":[101],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64117","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-ssrf"],"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