CVE-2020-9498 Information

Description

Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server a series ofspecially-crafted PDUs could result in memory corruption possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Reference

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525 https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@3Cannounce.apache.org3E https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b403Cannounce.guacamole.apache.org3E https://lists.debian.org/debian-lts-announce/2020/11/msg00010.html https://research.checkpoint.com/2020/apache-guacamole-rce/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7