Input validation error in Atlassian Crowd

1) Input validation error

EUVDB-ID: #VU42759

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-3925

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Atlassian Crowd 2.5.x before 2.5.4, 2.6.x before 2.6.3, 2.3.8, and 2.4.9 allows remote attackers to read arbitrary files and send HTTP requests to intranet servers via a request to (1) /services/2 or (2) services/latest with a DTD containing an XML external entity declaration in conjunction with an entity reference.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Crowd: 2.3.8 - 2.6.2

External links

http://www.commandfive.com/papers/C5_TA_2013_3925_AtlassianCrowd.pdf
http://jira.atlassian.com/browse/CWD-3366

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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