Vulnerability identifier: #VU29481

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9497

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Guacamole
Web applications / Remote management & hosting panels

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to insufficient validation of user-supplied input of RDP static virtual channels. A remote attacker can use a specially crafted PDUs to disclose sensitive information within the memory of the guacd process handling the connection.  

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Guacamole: 0.8.3 - 1.1.0

---

CPE

• cpe:2.3:a:apache_foundation:guacamole:1.1.0:*:*:*:*:*:*:*

External links
http://seclists.org/oss-sec/2020/q3/2

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?