Vulnerability identifier: #VU17018

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-18893

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jinjava
Client/Desktop applications / Other client software

Vendor: HubSpot

Description

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to the application does not block the getClass method, related to com/hubspot/jinjava/el/ext/JinjavaBeanELResolver.java. A remote attacker can bypass security restrictions to conduct further attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

jinjava: 1.0.0 - 2.0.5

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External links
http://github.com/HubSpot/jinjava/blob/master/CHANGES.md
http://github.com/HubSpot/jinjava/pull/230

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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.