Multiple vulnerabilities in Graylog Graylog

Published: 2018-06-01 | Updated: 2020-07-17

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-11650 CVE-2018-11651
CWE-ID	CWE-79
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Graylog Client/Desktop applications / Office applications
Vendor	Graylog

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU31291

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11650

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

Exploit availability: No

Description

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

Graylog before v2.4.4 has an XSS security issue with unescaped text in notifications, related to toastr and util/UserNotification.js.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Graylog: 2.4.0 - 2.4.3

External links

http://github.com/Graylog2/graylog2-server/pull/4727
http://www.graylog.org/post/announcing-graylog-v2-4-4

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 trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

2) Cross-site scripting

EUVDB-ID: #VU31292