CVE-2025-2245

Server Side Request Forgery in GravityZone Update Server Using Null Bytes (VA-12646)

Published Apr 4, 2025 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
A server-side request forgery (SSRF) vulnerability exists in the Bitdefender GravityZone Update Server when operating in Relay Mode. The HTTP proxy component on port 7074 uses a domain allowlist to restrict outbound requests, but fails to properly sanitize hostnames containing null-byte (%00) sequences. By crafting a request to a domain such as evil.com%00.bitdefender.com, an attacker can bypass the allowlist check, causing the proxy to forward requests to arbitrary external or internal systems.

Remediation

Vendor Solution

An automatic update to version 3.5.2.689 fixes the issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-9719 A server-side request forgery (SSRF) vulnerability exists in the Bitdefender GravityZone Update Server when operating in Relay Mode. The HTTP proxy component on port 7074 uses a domain allowlist to restrict outbound requests, but fails to properly sanitize hostnames containing null-byte (%00) sequences. By crafting a request to a domain such as evil.com%00.bitdefender.com, an attacker can bypass the allowlist check, causing the proxy to forward requests to arbitrary external or internal systems.
History
Type Values Removed Values Added
First Time appeared Bitdefender
Bitdefender gravityzone Update Server
CPEs cpe:2.3:a:bitdefender:gravityzone_update_server:*:*:*:*:*:*:*:*
Vendors & Products Bitdefender
Bitdefender gravityzone Update Server
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A server-side request forgery (SSRF) vulnerability exists in the Bitdefender GravityZone Update Server when operating in Relay Mode. The HTTP proxy component on port 7074 uses a domain allowlist to restrict outbound requests, but fails to properly sanitize hostnames containing null-byte (%00) sequences. By crafting a request to a domain such as evil.com%00.bitdefender.com, an attacker can bypass the allowlist check, causing the proxy to forward requests to arbitrary external or internal systems.
Title Server Side Request Forgery in GravityZone Update Server Using Null Bytes (VA-12646)
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Bitdefender
Published
Updated
Apr 4, 2025, 12:57 PM
Reserved
Mar 12, 2025, 11:14 AM
Status
Analyzed
Published
Apr 4, 2025, 10:15 AM
Modified
Jun 17, 2026, 9:06 AM