Improper validation of custom installation directories on Windows could allow installation into locations with unsafe permissions, increasing the risk of DLL sideloading.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zabbix | Zabbix | unknown |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zabbix | Zabbix |
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Vendor Solution
Update the affected components to their respective fixed versions.
Vendor Workaround
Install the Zabbix Agent into directories with appropriately restricted access permissions. Verify and adjust permissions on custom installation directories to prevent unprivileged users from modifying their contents.
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.158% probability within 30 days)
| Link | Providers |
|---|---|
| https://support.zabbix.com/browse/ZBX-28077 |
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Zabbix
Zabbix zabbix |
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| Vendors & Products |
Zabbix
Zabbix zabbix |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory had secure access permissions. If the target directory allowed unauthorized users to modify its contents, an attacker could place a malicious DLL that could later be loaded by the application, resulting in DLL sideloading. The installer has been hardened to detect potentially unsafe installation directories and now requires explicit user confirmation before proceeding with installation in such locations. This reduces the risk of accidental installation into directories with inappropriate permissions while preserving compatibility with existing deployment scenarios. | |
| Title | Improper validation of custom installation directories on Windows could allow installation into locations with unsafe permissions, increasing the risk of DLL sideloading. | |
| Weaknesses | CWE-427 | |
| References |
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| Metrics |
cvssV4_0
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