A vulnerability, which was classified as critical, has been found in OSSN up to 5.3. This issue affects the function rand in the library libraries/ossn.lib.upgrade.php of the file components/OssnComments/ossn_com.php of the component Permission. The manipulation with an unknown input leads to a risky encryption vulnerability. Using CWE to declare the problem leads to CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in Open Source Social Network (OSSN) through 5.3. A user-controlled file path with a weak cryptographic rand() can be used to read any file with the permissions of the webserver. This can lead to further compromise. The attacker must conduct a brute-force attack against the SiteKey to insert into a crafted URL for components/OssnComments/ossn_com.php and/or libraries/ossn.lib.upgrade.php.

The weakness was published 03/30/2020. The identification of this vulnerability is CVE-2020-10560 since 03/13/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

By approaching the search of inurl:components/OssnComments/ossn_com.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• OSSN

Version

• 5.0
• 5.1
• 5.2
• 5.3

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• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
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