Jitbit Helpdesk up to 9.0.2 Password Reset Link userHash PRNG entropy

HistoryDiffrelatejsonxmlCTI

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Jitbit Helpdesk up to 9.0.2. This impacts an unknown function of the component Password Reset Link. Performing a manipulation of the argument userHash as part of Parameter results in entropy (PRNG). This vulnerability is identified as CVE-2017-18486. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Jitbit Helpdesk up to 9.0.2. It has been classified as critical. This affects an unknown code of the component Password Reset Link. The manipulation of the argument userHash as part of a Parameter leads to a entropy vulnerability (PRNG). CWE is classifying the issue as CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Jitbit Helpdesk before 9.0.3 allows remote attackers to escalate privileges because of mishandling of the User/AutoLogin userHash parameter. By inspecting the token value provided in a password reset link, a user can leverage a weak PRNG to recover the shared secret used by the server for remote authentication. The shared secret can be used to escalate privileges by forging new tokens for any user. These tokens can be used to automatically log in as the affected user.

The weakness was released 08/09/2019. This vulnerability is uniquely identified as CVE-2017-18486 since 08/09/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 9.0.3 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Jitbit

Name

Helpdesk

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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

Name: PRNG
Class: Entropy / PRNG
CWE: CWE-332 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Helpdesk 9.0.3

Timelineinfo

08/09/2019 🔍
08/09/2019 +0 days 🔍
08/09/2019 +0 days 🔍
11/21/2023 +1565 days 🔍

Sourcesinfo

Advisory: 144334
Status: Not defined

CVE: CVE-2017-18486 (🔍)
GCVE (CVE): GCVE-0-2017-18486
GCVE (VulDB): GCVE-100-139731

Entryinfo

Created: 08/09/2019 21:19
Updated: 11/21/2023 19:34
Changes: 08/09/2019 21:19 (41), 07/23/2020 19:05 (17), 11/21/2023 19:34 (6)
Complete: 🔍
Cache ID: 216::103