Vulnerability identifier: #VU35876

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-8901

CWE-ID: CWE-74

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
b2evolution
Web applications / CMS

Vendor: b2evolution.net

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

b2evolution 6.7.6 suffer from an Object Injection vulnerability in /htsrv/call_plugin.php.

Mitigation
Install update from vendor's website.

Vulnerable software versions

b2evolution: 6.7.6

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External links
http://www.openwall.com/lists/oss-security/2016/09/30/3
http://github.com/b2evolution/b2evolution/commit/25c21cf9cc4261324001f9039509710b37ee2c4d
http://github.com/b2evolution/b2evolution/commit/999b5ad1d59760d7e450ceb541f55432fc74cd27

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.