Vulnerability identifier: #VU8547

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Liferay Enterprise Portal
Web applications / CMS

Vendor: Liferay

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to errors in AggregateFilter, MinifierFilter and DynamicCSSFilter components. A remote attacker can use a specially crafted URL to consume all available disk space on the system and cause denial of service (DoS) conditions.

 

Mitigation
Install update from vendor's repository:
https://sourceforge.net/projects/liferay-patches/files/7.0.3%20GA4/
https://github.com/community-security-team/liferay-portal/compare/7.0.3-ga4...7.0.3-CST-7028.patch

Vulnerable software versions

Liferay Enterprise Portal: 7.0.0 A1 - 7.0.3 GA4

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External links
http://dev.liferay.com/web/community-security-team/known-vulnerabilities/-/asset_publisher/4AHAYapU...

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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.