Vulnerability Name:

CVE-2020-9497 (CCN-184483)

Assigned:2020-07-02
Published:2020-07-02
Updated:2021-07-21
Summary:Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or compromised RDP server, specially-craftedPDUs could result in disclosure of information within the memory ofthe guacd process handling the connection.
CVSS v3 Severity:4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:1.2 Low (CVSS v2 Vector: AV:L/AC:H/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-9497

Source: XF
Type: UNKNOWN
apache-cve20209497-info-disc(184483)

Source: CCN
Type: Apache Guacamole Web site
Apache Guacamole

Source: CONFIRM
Type: Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525

Source: MLIST
Type: Mailing List, Vendor Advisory
[guacamole-user] 20200703 Re: [SECURITY] CVE-2020-9497: Apache Guacamole: Improper input validation of RDP static virtual channels

Source: MLIST
Type: Mailing List, Vendor Advisory
[announce] 20210223 Re: Apache Software Foundation Security Report: 2020

Source: MLIST
Type: Mailing List, Vendor Advisory
[guacamole-user] 20200703 RE: [SECURITY] CVE-2020-9497: Apache Guacamole: Improper input validation of RDP static virtual channels

Source: MLIST
Type: Mailing List, Vendor Advisory
[announce] 20200701 [SECURITY] CVE-2020-9497: Apache Guacamole: Improper input validation of RDP static virtual channels

Source: CCN
Type: Apache Mailing List, 2020/07/02 03:14:11
[SECURITY] CVE-2020-9497: Apache Guacamole: Improper input validation of RDP static virtual channels

Source: MISC
Type: Mailing List, Vendor Advisory
https://lists.apache.org/thread.html/r65f75d3d65d1af68141f42071ebb27dda24af3e45570e593c1dbd81f%40%3Cannounce.guacamole.apache.org%3E

Source: MLIST
Type: Mailing List, Vendor Advisory
[announce] 20210125 Apache Software Foundation Security Report: 2020

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20201106 [SECURITY] [DLA 2435-1] guacamole-server security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-bfde0ab889

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-640645e518

Source: MISC
Type: Third Party Advisory
https://research.checkpoint.com/2020/apache-guacamole-rce/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apache:guacamole:*:*:*:*:*:*:*:* (Version <= 1.1.0)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apache guacamole *
    fedoraproject fedora 32
    fedoraproject fedora 33
    debian debian linux 9.0