National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-3926 Detail

Current Description

** DISPUTED ** Atlassian Crowd 2.6.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to a "symmetric backdoor." NOTE: as of 20130704, the vendor could not reproduce the issue, stating "We've been unable to substantiate the existence of [CVE-2013-3926]. The author of the article has not contacted Atlassian and has provided no detail, making it difficult to validate the claim... If we can confirm that there is a vulnerability, a patch will be issued."

Source:  MITRE
Description Last Modified:  07/01/2013
View Analysis Description

Evaluator Description

Per: http://cwe.mitre.org/data/definitions/77.html 'CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')'

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Provides unauthorized access
Allows unauthorized disclosure of information
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Atlassian (07/09/2013)

On 30th of June 2013, an article was uploaded to Slashdot regarding two vulnerabilities in Atlassian Crowd. We had already identified and fixed the first vulnerability, which affects only standalone Crowd servers and which the author had labeled CVE-2013-3925. Patches and updated packages are available at https://jira.atlassian.com/browse/CWD-3366. We have been unable to substantiate the existence of the second alleged vulnerability. The author of the article has not contacted Atlassian and has provided no details to us, making it difficult to validate the claim. While we have been unable to confirm the existence of the second vulnerability, designated CVE-2013-3926, we are taking it seriously and have reached out to the author directly for more details. If we can confirm that there is a vulnerability, a patch will be issued and all Crowd customers will be emailed details on how to update.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://it.slashdot.org/story/13/07/01/0011217/backdoor-discovered-in-atlassian-crowd
http://www.commandfive.com/papers/C5_TA_2013_3925_AtlassianCrowd.pdf Exploit

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:atlassian:crowd:2.6.3:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-3926
NVD Published Date:
07/01/2013
NVD Last Modified:
10/04/2013