Denial of service in Apache Tika

1) XXE attack

EUVDB-ID: #VU15310

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-11796

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct XXE-attack.

The vulnerability exists due to improper handling of XML External Entities (XXEs) when parsing an XML file. A remote attacker can trick the victim into open an XML file that submits malicious input and cause a denial of service (DoS) condition.

Mitigation

Update to version 1.19.1.

Vulnerable software versions

Apache Tika: 0.8 - 1.19

CPE2.3

• cpe:2.3:a:apache_foundation:tika:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:0.10:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.6:*:*:*:*:*:*:*

External links

https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev...

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.