Guacamole 0.9.8/0.9.9 File Browser cross site scripting

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.
4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Guacamole 0.9.8/0.9.9. It has been declared as problematic. This affects an unknown part of the component File Browser. Such manipulation leads to cross site scripting. This vulnerability is traded as CVE-2016-1566. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Guacamole 0.9.8/0.9.9 and classified as problematic. Affected by this issue is some unknown processing of the component File Browser. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in the file browser in Guacamole 0.9.8 and 0.9.9, when file transfer is enabled to a location shared by multiple users, allows remote authenticated users to inject arbitrary web script or HTML via a crafted filename. NOTE: this vulnerability was fixed in guacamole.war on 2016-01-13, but the version number was not changed.

The bug was discovered 02/01/2016. The weakness was shared 02/02/2017 (Website). The advisory is available at sourceforge.net. This vulnerability is handled as CVE-2016-1566 since 01/08/2016. The attack may be launched remotely. Required for exploitation is a simple authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 367 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/08/2016 🔍
02/01/2016 +24 days 🔍
02/02/2017 +367 days 🔍
02/02/2017 +0 days 🔍
02/03/2017 +1 days 🔍
08/10/2020 +1284 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-1566 (🔍)
GCVE (CVE): GCVE-0-2016-1566
GCVE (VulDB): GCVE-100-96494
OSVDB: - CVE-2016-1566 - Apache - Guacamole - Cross-Site Scripting Issue

Entryinfo

Created: 02/03/2017 10:01
Updated: 08/10/2020 07:41
Changes: 02/03/2017 10:01 (54), 08/10/2020 07:41 (4)
Complete: 🔍
Cache ID: 216::103

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