VDB-157641 · CVE-2020-9497 · GCVE-0-2020-9497

Apache Guacamole up to 1.1.0 RDP information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apache Guacamole up to 1.1.0. Affected by this vulnerability is an unknown functionality of the component RDP Handler. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2020-9497. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Guacamole up to 1.1.0. It has been classified as problematic. This affects an unknown functionality of the component RDP Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

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.

The weakness was released 07/02/2020 (Website). The advisory is shared at lists.apache.org. This vulnerability is uniquely identified as CVE-2020-9497 since 03/01/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 1.2.0 eliminates this vulnerability. The upgrade is hosted for download at guacamole.apache.org. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

Entry connected to this vulnerability is available at VDB-157642. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Apache

Name

Guacamole

Version

License

open-source

Website

Vendor: https://www.apache.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Guacamole 1.2.0

Timelineinfo

03/01/2020 🔍
06/28/2020 +119 days 🔍
07/02/2020 +4 days 🔍
07/03/2020 +1 days 🔍
10/28/2020 +117 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-9497 (🔍)
GCVE (CVE): GCVE-0-2020-9497
GCVE (VulDB): GCVE-100-157641
See also: 🔍

Entryinfo

Created: 07/03/2020 08:33
Updated: 10/28/2020 19:36
Changes: 07/03/2020 08:33 (35), 07/03/2020 08:38 (17), 07/03/2020 14:30 (4), 10/28/2020 19:36 (1)
Complete: 🔍
Committer: fsi_isac
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.