Overview
CVE-2025-29846 is a high-severity information disclosure vulnerability found in the `portenable` CGI application. This flaw allows remote, authenticated users to obtain the status of installed packages on the affected system. Successful exploitation could provide attackers with valuable information to aid in further attacks.
Technical Details
The vulnerability resides within the `portenable` CGI component. It occurs because the application fails to properly restrict access to information regarding installed packages. An authenticated attacker can leverage this vulnerability to query the system and retrieve a list of installed software, including version numbers and configuration details. Specific exploitation vectors involve crafted HTTP requests to the CGI endpoint, potentially bypassing intended access controls.
CVSS Analysis
- CVSS Score: 7.2 (HIGH)
- This score reflects the potential impact of the vulnerability. While authentication is required, the level of access achieved (information disclosure of installed packages) is significant.
Possible Impact
Exploitation of CVE-2025-29846 can have several serious consequences:
- Information Disclosure: Attackers gain knowledge of installed software, including versions.
- Attack Surface Mapping: This information can be used to identify known vulnerabilities in the installed software.
- Targeted Attacks: Armed with information about the system’s software configuration, attackers can launch highly targeted attacks exploiting specific vulnerabilities.
Mitigation and Patch Steps
The primary mitigation is to apply the security patch provided by the vendor. Specifically:
- Apply the Patch: Update the affected software with the patch detailed in the Synology security advisory.
- Refer to Vendor Advisory: See the reference link for the specific patch version and instructions.
In cases where immediate patching is not possible, consider implementing the following temporary workarounds (though these are not substitutes for patching):
- Restrict Network Access: Limit access to the vulnerable CGI endpoint to only trusted networks or users.
