VDB-98924 · CVE-2017-20027 · GCVE-100-98924

HumHub up to 1.0.1 DOM 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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in HumHub up to 1.0.1. Affected by this issue is some unknown functionality. Such manipulation leads to cross site scripting (DOM). This vulnerability is traded as CVE-2017-20027. The attack may be launched remotely. Furthermore, there is an exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in HumHub up to 1.0.1 and classified as problematic. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability (DOM). Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity.

The weakness was shared 03/17/2017 by Tim Coen with Curesec Research Team as HumHub 1.0.1: XSS as confirmed mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2017-20027. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

A public exploit has been developed by Tim Coen and been published immediately after the advisory. The exploit is available at seclists.org. It is declared as proof-of-concept.

Upgrading to version 1.1.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The entry VDB-98923 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

HumHub

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (VulDB): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Researcher Base Score: 🔍
NVD Base Score: 🔍

Exploitinginfo

Name: DOM
Class: Cross site scripting / DOM
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Tim Coen
Download: 🔍

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: 🔍
Exploit Delay Time: 🔍

Upgrade: HumHub 1.1.1

Timelineinfo

09/26/2016 🔍
10/01/2016 +5 days 🔍
12/01/2016 +61 days 🔍
03/17/2017 +106 days 🔍
03/17/2017 +0 days 🔍
03/28/2017 +11 days 🔍
06/05/2022 +1894 days 🔍
11/22/2022 +170 days 🔍

Sourcesinfo

Advisory: HumHub 1.0.1: XSS
Researcher: Tim Coen
Organization: Curesec Research Team
Status: Confirmed

CVE: CVE-2017-20027 (🔍)
GCVE (CVE): GCVE-0-2017-20027
GCVE (VulDB): GCVE-100-98924
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/28/2017 17:40
Updated: 11/22/2022 12:58
Changes: 03/28/2017 17:40 (55), 08/23/2020 09:50 (1), 06/05/2022 09:41 (3), 11/22/2022 12:52 (3), 11/22/2022 12:58 (28)
Complete: 🔍
Cache ID: 216::103