Multiple vulnerabilities in Redmine

Published: 2019-11-21

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-17427 CVE-2019-18890
CWE-ID	CWE-79 CWE-89
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Redmine Web applications / CRM systems
Vendor	Ruby

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stored cross-site scripting

EUVDB-ID: #VU22883

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-17427

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of textile formatting errors. A remote attacker can send a specially crafted request to store XSS payload on the website and execute arbitrary HTML and script code in user's browser in context of vulnerable website, when the affected web page is visited by the victim.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Redmine: 3.4.0 - 4.0.3

External links

http://seclists.org/bugtraq/2019/Nov/31
http://www.redmine.org/projects/redmine/wiki/Security_Advisories

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.

2) SQL injection

EUVDB-ID: #VU22884

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-18890

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.