Path traversal in JBoss Enterprise Application Platform

1) Path traversal

EUVDB-ID: #VU37591

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1048

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

JBoss Enterprise Application Platform: 7.1.0

External links

http://access.redhat.com/errata/RHSA-2018:0478
http://access.redhat.com/errata/RHSA-2018:0479
http://access.redhat.com/errata/RHSA-2018:0480
http://access.redhat.com/errata/RHSA-2018:0481
http://bugzilla.redhat.com/show_bug.cgi?id=1534343

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.