Vulnerability identifier: #VU29482
Vulnerability risk: High
CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID:
CWE-ID:
CWE-824
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Guacamole
Server applications /
Remote management servers, RDP, SSH
Vendor: Apache Foundation
Description
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to the affected software mishandles pointers involved in processing data received via RDP static virtual channels. A remote attacker can use a specially crafted PDUs and execute arbitrary code on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Guacamole: 0.8.3 - 1.1.0
External links
https://seclists.org/oss-sec/2020/q3/3
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. However, proof of concept for this vulnerability is available.